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Câu 1 : Read the message and choose the best answer.
A. They are a natural byproduct of the environment we live in.
B. They prevent and slow down damage to cells and tissues.
C. They are artificial molecules with an unpaired electron.
D. They are the result of unhealthy living conditions and behaviors.
Câu 2 : Antioxidants are substances - artificial or natural - that prevent and slow cell and tissue damage by attacking free radicals, which are molecules that have an unpaired electron. Free radicals are natural byproducts of our metabolism and are also generated in response to environmental stressors, such as exposure to pollution, X-rays or cigarette smoke. In high quantities, free radicals can cause oxidative stress, which is when the body has too many free radicals that start to destroy DNA, fatty tissue and proteins. [A]
A. people who used the term do not know its meaning.
B. It is commonly used to refer to a group of chemicals.
C. People often do the term in a narrow sense.
D. It is more about chemical composition rather than property.
Câu 3 : Antioxidants are substances - artificial or natural - that prevent and slow cell and tissue damage by attacking free radicals, which are molecules that have an unpaired electron. Free radicals are natural byproducts of our metabolism and are also generated in response to environmental stressors, such as exposure to pollution, X-rays or cigarette smoke. In high quantities, free radicals can cause oxidative stress, which is when the body has too many free radicals that start to destroy DNA, fatty tissue and proteins. [A]
A. Their free electrons can heal damage cells and tissues.
B. They get rid of free radicals, thus preventing cell and tissue damage.
C. They protect the body by slowing down the metabolism process.
D. They can cure some serious illnesses such as Alzheimer and Parkinson.
Câu 5 : Antioxidants are substances - artificial or natural - that prevent and slow cell and tissue damage by attacking free radicals, which are molecules that have an unpaired electron. Free radicals are natural byproducts of our metabolism and are also generated in response to environmental stressors, such as exposure to pollution, X-rays or cigarette smoke. In high quantities, free radicals can cause oxidative stress, which is when the body has too many free radicals that start to destroy DNA, fatty tissue and proteins. [A]
A. Vitamin C.
B. Beta-carotene.
C. Vitamin E.
D. Carotenoids.
Câu 6 : Antioxidants are substances - artificial or natural - that prevent and slow cell and tissue damage by attacking free radicals, which are molecules that have an unpaired electron. Free radicals are natural byproducts of our metabolism and are also generated in response to environmental stressors, such as exposure to pollution, X-rays or cigarette smoke. In high quantities, free radicals can cause oxidative stress, which is when the body has too many free radicals that start to destroy DNA, fatty tissue and proteins. [A]
A. Foods rich in antioxidants.
B. The benefits of antioxidants.
C. Common kinds of antioxidants.
D. Nutritional value of fresh fruit.
Câu 8 : Patient zero is generally taken to mean the first case in a disease outbreak – but the term is often applied in different ways. When it comes to zoonotic diseases (ones that jump from animals to humans, like SARS-CoV-2), patient zero might refer to the first-ever human case – the point at which the virus spills over from an animal to a human. For the general public, however, patient zero is often used to refer to the first case in a particular region, or the first case that's come to the attention of health authorities. However, these are not always the same thing. Sometimes the first case that's notified to us is not the first case in an outbreak. Similarly, just because someone is identified as the first case doesn't mean they spread the disease to anyone else, or behaved irresponsibly – with something like coronavirus, they may not even know they're sick.
A. A disease that only appears on animals.
B. A disease that is transmitted between species.
C. A disease that broke out in zoos.
D. A disease that originated from humans.
Câu 9 : Antioxidants are substances - artificial or natural - that prevent and slow cell and tissue damage by attacking free radicals, which are molecules that have an unpaired electron. Free radicals are natural byproducts of our metabolism and are also generated in response to environmental stressors, such as exposure to pollution, X-rays or cigarette smoke. In high quantities, free radicals can cause oxidative stress, which is when the body has too many free radicals that start to destroy DNA, fatty tissue and proteins. [A]
A. Patients with Alzheimer and Parkinson
B. Public readers.
C. Health experts.
D. Nutritionists.
Câu 10 : Patient zero is generally taken to mean the first case in a disease outbreak – but the term is often applied in different ways. When it comes to zoonotic diseases (ones that jump from animals to humans, like SARS-CoV-2), patient zero might refer to the first-ever human case – the point at which the virus spills over from an animal to a human. For the general public, however, patient zero is often used to refer to the first case in a particular region, or the first case that's come to the attention of health authorities. However, these are not always the same thing. Sometimes the first case that's notified to us is not the first case in an outbreak. Similarly, just because someone is identified as the first case doesn't mean they spread the disease to anyone else, or behaved irresponsibly – with something like coronavirus, they may not even know they're sick.
A. It refers to the first case in the outbreak of a disease.
B. It is the first patient to be admitted to hospital.
C. It is the first case to die from the outbreak of a disease.
D. It refers to the first patient that is reported.
Câu 11 : Patient zero is generally taken to mean the first case in a disease outbreak – but the term is often applied in different ways. When it comes to zoonotic diseases (ones that jump from animals to humans, like SARS-CoV-2), patient zero might refer to the first-ever human case – the point at which the virus spills over from an animal to a human. For the general public, however, patient zero is often used to refer to the first case in a particular region, or the first case that's come to the attention of health authorities. However, these are not always the same thing. Sometimes the first case that's notified to us is not the first case in an outbreak. Similarly, just because someone is identified as the first case doesn't mean they spread the disease to anyone else, or behaved irresponsibly – with something like coronavirus, they may not even know they're sick.
A.People who are immediately aware of their outbreak.
B. The first case that spreads the disease might remain unknown.
C. Their index case and primary case was the same person.
D. Authorities could identify their index cases is quickly.
Câu 12 : Patient zero is generally taken to mean the first case in a disease outbreak – but the term is often applied in different ways. When it comes to zoonotic diseases (ones that jump from animals to humans, like SARS-CoV-2), patient zero might refer to the first-ever human case – the point at which the virus spills over from an animal to a human. For the general public, however, patient zero is often used to refer to the first case in a particular region, or the first case that's come to the attention of health authorities. However, these are not always the same thing. Sometimes the first case that's notified to us is not the first case in an outbreak. Similarly, just because someone is identified as the first case doesn't mean they spread the disease to anyone else, or behaved irresponsibly – with something like coronavirus, they may not even know they're sick.
A. It means the same thing regardless of who's using it.
B. It's no longer used because it's not specific enough.
C. Its meaning might vary depending on who's using it.
D. It is mostly used by health experts rather than authorities.
Câu 13 : Patient zero is generally taken to mean the first case in a disease outbreak – but the term is often applied in different ways. When it comes to zoonotic diseases (ones that jump from animals to humans, like SARS-CoV-2), patient zero might refer to the first-ever human case – the point at which the virus spills over from an animal to a human. For the general public, however, patient zero is often used to refer to the first case in a particular region, or the first case that's come to the attention of health authorities. However, these are not always the same thing. Sometimes the first case that's notified to us is not the first case in an outbreak. Similarly, just because someone is identified as the first case doesn't mean they spread the disease to anyone else, or behaved irresponsibly – with something like coronavirus, they may not even know they're sick.
A. Because it helps decide which is more important, health services or sanitation systems.
B. Because it helps with tracing and quarantining other cases.
C. Because it helps establish who should be held responsible.
D. Because it helps with future prevention against a disease.
Câu 15 : The Human Heart
A.It keeps the body warm.
B. It helps the body produce plasma.
C. It sends nutrients through the blood to all parts of the body.
D. All of the above
Câu 16 : Patient zero is generally taken to mean the first case in a disease outbreak – but the term is often applied in different ways. When it comes to zoonotic diseases (ones that jump from animals to humans, like SARS-CoV-2), patient zero might refer to the first-ever human case – the point at which the virus spills over from an animal to a human. For the general public, however, patient zero is often used to refer to the first case in a particular region, or the first case that's come to the attention of health authorities. However, these are not always the same thing. Sometimes the first case that's notified to us is not the first case in an outbreak. Similarly, just because someone is identified as the first case doesn't mean they spread the disease to anyone else, or behaved irresponsibly – with something like coronavirus, they may not even know they're sick.
A. Tracing patient zero: The only hope to.
B. Tracing patient zero: When experts and authorities disagree.
C. Tracing patient zero: Impossible and worthless.
D. Tracing patient zero: Not easy but worth it.
Câu 17 : The Human Heart
A.Artery
B.Vein
C. Valve
D. Atrium
Câu 18 : The Human Heart
A. Plasma carries oxygens from lungs.
B. Human heart is slightly on the left chest.
C. Veins carries blood back to the heart.
D. Blood flow at the different speed through all of the body.
Câu 19 : The Human Heart
A.red cells
B.white cells
C. blue cells
D. platelets
Câu 20 : The Human Heart
A. push
B. beat
C. mix
D. gather
Câu 21 : The Human Heart
A. Blood can’t warm up the body.
B. Children’s hearts beat faster than adult’s ones.
C. One of the large veins come from upper body.
D. Human heart can work independently in the circulatory system.
Câu 22 : The Human Heart
A. [A]
B. [B]
C. [C]
D. [D]
Câu 23 : The Human Heart
A. Heart human is the most important organ.
B. Heart human and its function
C. How to have a healthy heart
D. The circulatory system has the heart only
Câu 25 : The five senses of the body include sight, hearing, taste, smell, and touch. Human beings and most other animals use the five senses to help them live and experience the world around them. The senses also help people to learn, protect themselves, and to enjoy the differences between foods, sounds, and other experiences a person has in life. The senses also work together to give you a clear picture of the activities around you.
A. Close-sightedness
B. Nearsightedness
C. Farsightedness
D. Braille
Câu 26 : The five senses of the body include sight, hearing, taste, smell, and touch. Human beings and most other animals use the five senses to help them live and experience the world around them. The senses also help people to learn, protect themselves, and to enjoy the differences between foods, sounds, and other experiences a person has in life. The senses also work together to give you a clear picture of the activities around you.
A. tubes
B. passages
C. sound vibrations
D. inner ear
Câu 27 : The five senses of the body include sight, hearing, taste, smell, and touch. Human beings and most other animals use the five senses to help them live and experience the world around them. The senses also help people to learn, protect themselves, and to enjoy the differences between foods, sounds, and other experiences a person has in life. The senses also work together to give you a clear picture of the activities around you.
A. clarifying
B. purifying
C. distinguishing
D. processing
Câu 28 : The five senses of the body include sight, hearing, taste, smell, and touch. Human beings and most other animals use the five senses to help them live and experience the world around them. The senses also help people to learn, protect themselves, and to enjoy the differences between foods, sounds, and other experiences a person has in life. The senses also work together to give you a clear picture of the activities around you.
A. Helps with the taste of food
B. Helps filter the food a person eats
C. Helps filter the air a person breathes out
D. Helps filter the air a person breathes in
Câu 29 : The five senses of the body include sight, hearing, taste, smell, and touch. Human beings and most other animals use the five senses to help them live and experience the world around them. The senses also help people to learn, protect themselves, and to enjoy the differences between foods, sounds, and other experiences a person has in life. The senses also work together to give you a clear picture of the activities around you.
A. The sense of touch works both outside and inside the body.
B. People taste different flavors by nose and tongue.
C. Each sense works separately.
D. People only get feeling throughout the skin.
Câu 31 : Bones support the human body. They are the structure on which the skin hangs. Without bones the body would collapse. A person could not walk or run. Bones provide both support and protection for parts of the body.
A.Vertebrae
B. Tendons
C. Ligaments
D. Ribs
Câu 32 : The five senses of the body include sight, hearing, taste, smell, and touch. Human beings and most other animals use the five senses to help them live and experience the world around them. The senses also help people to learn, protect themselves, and to enjoy the differences between foods, sounds, and other experiences a person has in life. The senses also work together to give you a clear picture of the activities around you.
A.How 5 senses of the body work
B. Senses are always sensitive
C. Senses affect each other
D. People can’t live without 5 senses of the body.
Câu 33 : Bones support the human body. They are the structure on which the skin hangs. Without bones the body would collapse. A person could not walk or run. Bones provide both support and protection for parts of the body.
A. When bones form too many new red and white blood.
B. When the muscles build stronger.
C. When people turn older and older.
D. When people are not active.
Câu 34 : Bones support the human body. They are the structure on which the skin hangs. Without bones the body would collapse. A person could not walk or run. Bones provide both support and protection for parts of the body.
A. between skeleton and skull
B. between vertebrae and bones
C. between each nerve
D. between each vertebra
Câu 35 : Bones support the human body. They are the structure on which the skin hangs. Without bones the body would collapse. A person could not walk or run. Bones provide both support and protection for parts of the body.
A. collarbone
B. shoulder bone
C. pelvis
D. thigh bone
Câu 36 : Bones support the human body. They are the structure on which the skin hangs. Without bones the body would collapse. A person could not walk or run. Bones provide both support and protection for parts of the body.
A. The upper part of the leg is the thigh bone.
B. Bones can many times repair themselves.
C. Body has only 1 kinds of bones.
D. Disks cushion the vertebrae.
Câu 37 : Bones support the human body. They are the structure on which the skin hangs. Without bones the body would collapse. A person could not walk or run. Bones provide both support and protection for parts of the body.
A. full
B. empty
C. flat
D. thin
Câu 38 : Bones support the human body. They are the structure on which the skin hangs. Without bones the body would collapse. A person could not walk or run. Bones provide both support and protection for parts of the body.
A.Children have more bones than adults.
B. Bones stop growing before a person become adult.
C.Bones are non-living cells.
D. Bones can’t join together when a person gets older.
Câu 39 : Bacteriaare the second smallest living things on Earth with only viruses being smaller. They are very small organisms which usually consist of only a single cell. They do not have chlorophyll that is found in plants which allow for the production of food. If one million of the tiny bacteria were laid end-to-end, they would only measure about two inches. The word bacteria is plural, and bacteriumdescribes a single organism.
A.The inventor of bacteria
B. Discovered bacteria on the body
C. First person to see a virus under a microscope
D. First person to see bacteria under a microscope
Câu 40 : Bones support the human body. They are the structure on which the skin hangs. Without bones the body would collapse. A person could not walk or run. Bones provide both support and protection for parts of the body.
A. [A]
B. [B]
C. [C]
D. [D]
Câu 41 : Bacteriaare the second smallest living things on Earth with only viruses being smaller. They are very small organisms which usually consist of only a single cell. They do not have chlorophyll that is found in plants which allow for the production of food. If one million of the tiny bacteria were laid end-to-end, they would only measure about two inches. The word bacteria is plural, and bacteriumdescribes a single organism.
A.Comma
B. Corkscrew
C. Rod-like
D. Rectangular
Câu 42 : Bacteriaare the second smallest living things on Earth with only viruses being smaller. They are very small organisms which usually consist of only a single cell. They do not have chlorophyll that is found in plants which allow for the production of food. If one million of the tiny bacteria were laid end-to-end, they would only measure about two inches. The word bacteria is plural, and bacteriumdescribes a single organism.
A.By shape
B.By size
C. By location
D. By color
Câu 43 : Bacteriaare the second smallest living things on Earth with only viruses being smaller. They are very small organisms which usually consist of only a single cell. They do not have chlorophyll that is found in plants which allow for the production of food. If one million of the tiny bacteria were laid end-to-end, they would only measure about two inches. The word bacteria is plural, and bacteriumdescribes a single organism.
A. Tetanus
B. E. coli
C. Decomposer
D. Pasteurization
Câu 44 : Bacteriaare the second smallest living things on Earth with only viruses being smaller. They are very small organisms which usually consist of only a single cell. They do not have chlorophyll that is found in plants which allow for the production of food. If one million of the tiny bacteria were laid end-to-end, they would only measure about two inches. The word bacteria is plural, and bacteriumdescribes a single organism.
A.Vitamin k
B. E. coli
C. b vitamins
D. Tetanus
Câu 45 : Bacteriaare the second smallest living things on Earth with only viruses being smaller. They are very small organisms which usually consist of only a single cell. They do not have chlorophyll that is found in plants which allow for the production of food. If one million of the tiny bacteria were laid end-to-end, they would only measure about two inches. The word bacteria is plural, and bacteriumdescribes a single organism.
A. Bacteria can have both positive and negative effects on human body.
B. Bacteria are only found on human body.
C.Bacteria are visible organisms.
D. Bacteria are used mostly on food industry.
Câu 47 : Bacteriaare the second smallest living things on Earth with only viruses being smaller. They are very small organisms which usually consist of only a single cell. They do not have chlorophyll that is found in plants which allow for the production of food. If one million of the tiny bacteria were laid end-to-end, they would only measure about two inches. The word bacteria is plural, and bacteriumdescribes a single organism.
A.Bacterium
B. Tetanus
C. Pasteurization
D. Botulism
Câu 48 : According to sociologists, there are several different ways in which a person may become recognized as the leader of a social group in the United States. In the family, traditional cultural patterns confer leadership on one or both of the parents. In other cases, such as friendship groups, one or more persons may gradually emerge as leaders, although there is no formal process of selection. In larger groups, leaders are usually chosen formally through election or recruitment.
A. The problems faced by leaders.
B. How leadership differs in small and large groups
C. How social groups determine who will lead them
D. The role of leaders in social groups.
Câu 49 : According to sociologists, there are several different ways in which a person may become recognized as the leader of a social group in the United States. In the family, traditional cultural patterns confer leadership on one or both of the parents. In other cases, such as friendship groups, one or more persons may gradually emerge as leaders, although there is no formal process of selection. In larger groups, leaders are usually chosen formally through election or recruitment.
A. few people qualify as “natural leaders”
B. there is no proof that “natural leaders” exist
C. “natural leaders” are easily accepted by the members of a social group
D. “natural leaders” share a similar set of characteristics
Câu 50 : According to sociologists, there are several different ways in which a person may become recognized as the leader of a social group in the United States. In the family, traditional cultural patterns confer leadership on one or both of the parents. In other cases, such as friendship groups, one or more persons may gradually emerge as leaders, although there is no formal process of selection. In larger groups, leaders are usually chosen formally through election or recruitment.
A. recruitment
B. formal election process
C. specific leadership training
D. traditional cultural patterns
Câu 51 : According to sociologists, there are several different ways in which a person may become recognized as the leader of a social group in the United States. In the family, traditional cultural patterns confer leadership on one or both of the parents. In other cases, such as friendship groups, one or more persons may gradually emerge as leaders, although there is no formal process of selection. In larger groups, leaders are usually chosen formally through election or recruitment.
A. ensuring harmonious relationships
B. sharing responsibility with group members
C. identifying new leaders
D. achieving a goal
Câu 52 : According to sociologists, there are several different ways in which a person may become recognized as the leader of a social group in the United States. In the family, traditional cultural patterns confer leadership on one or both of the parents. In other cases, such as friendship groups, one or more persons may gradually emerge as leaders, although there is no formal process of selection. In larger groups, leaders are usually chosen formally through election or recruitment.
A. necessary
B. typical
C. group
D. particular
Câu 53 : According to sociologists, there are several different ways in which a person may become recognized as the leader of a social group in the United States. In the family, traditional cultural patterns confer leadership on one or both of the parents. In other cases, such as friendship groups, one or more persons may gradually emerge as leaders, although there is no formal process of selection. In larger groups, leaders are usually chosen formally through election or recruitment.
A. necessary
B. typical
C. group
D. particular
Câu 54 : According to sociologists, there are several different ways in which a person may become recognized as the leader of a social group in the United States. In the family, traditional cultural patterns confer leadership on one or both of the parents. In other cases, such as friendship groups, one or more persons may gradually emerge as leaders, although there is no formal process of selection. In larger groups, leaders are usually chosen formally through election or recruitment.
A. distant
B. enthusiastic
C. unreliable
D. personal
Câu 55 : Different cultures follow their own special customs when a child's baby teeth fall out. In Korea, for example, they have the custom of throwing lost teeth up on the roof of a house. According to tradition, a magpie will come and take the tooth. Later, the magpie will return with a new tooth for the child. In other Asian countries, such as Japan and Vietnam, children follow a similar tradition of throwing their lost teeth onto the roofs of houses.
A. Presents for young children's lost teeth
B. Customs concerning children's new teeth
C. Animals eating children's lost teeth
D. Traditions concerning children's lost teeth
Câu 56 : Different cultures follow their own special customs when a child's baby teeth fall out. In Korea, for example, they have the custom of throwing lost teeth up on the roof of a house. According to tradition, a magpie will come and take the tooth. Later, the magpie will return with a new tooth for the child. In other Asian countries, such as Japan and Vietnam, children follow a similar tradition of throwing their lost teeth onto the roofs of houses.
A. roofs'
B. countries'
C. houses'
D. children's
Câu 57 : Different cultures follow their own special customs when a child's baby teeth fall out. In Korea, for example, they have the custom of throwing lost teeth up on the roof of a house. According to tradition, a magpie will come and take the tooth. Later, the magpie will return with a new tooth for the child. In other Asian countries, such as Japan and Vietnam, children follow a similar tradition of throwing their lost teeth onto the roofs of houses.
A. In Mongolia
B. In Japan and Vietnam
C. In Korea
D. In Mexico and Spain
Câu 58 : Different cultures follow their own special customs when a child's baby teeth fall out. In Korea, for example, they have the custom of throwing lost teeth up on the roof of a house. According to tradition, a magpie will come and take the tooth. Later, the magpie will return with a new tooth for the child. In other Asian countries, such as Japan and Vietnam, children follow a similar tradition of throwing their lost teeth onto the roofs of houses.
A. they think dogs like eating children's teeth
B. they know that dogs are very responsible animals
C. they hope that their child will get some gifts for his or her tooth
D. they believe that this will make their child's new tooth good and strong
Câu 59 : Different cultures follow their own special customs when a child's baby teeth fall out. In Korea, for example, they have the custom of throwing lost teeth up on the roof of a house. According to tradition, a magpie will come and take the tooth. Later, the magpie will return with a new tooth for the child. In other Asian countries, such as Japan and Vietnam, children follow a similar tradition of throwing their lost teeth onto the roofs of houses.
A. countries
B. families
C. beginnings
D. stories
Câu 60 : Different cultures follow their own special customs when a child's baby teeth fall out. In Korea, for example, they have the custom of throwing lost teeth up on the roof of a house. According to tradition, a magpie will come and take the tooth. Later, the magpie will return with a new tooth for the child. In other Asian countries, such as Japan and Vietnam, children follow a similar tradition of throwing their lost teeth onto the roofs of houses.
A. Children put their lost teeth under their pillows.
B. Children hope to get money or gifts from the Tooth Fairy.
C. Lost teeth are traditionally given to an angel or fairy.
D. Children give money to the Tooth Fairy.
Câu 61 : Different cultures follow their own special customs when a child's baby teeth fall out. In Korea, for example, they have the custom of throwing lost teeth up on the roof of a house. According to tradition, a magpie will come and take the tooth. Later, the magpie will return with a new tooth for the child. In other Asian countries, such as Japan and Vietnam, children follow a similar tradition of throwing their lost teeth onto the roofs of houses.
A. soon after midnight
B. long before bedtime
C. early in the evening
D. late in the morning
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