1.

Computer plays an important part in our life. However, while bringing certain advantages, this high-tech device has its own limitations. First of all, the computer is a useful tool and an intelligent device in every aspect of life. What's more, new constructive materials, new robots, and new fuels are all made with help of information technology. That is to say, the computer has made our life become modern, more convenient, and civilized. However, a computer also has its own disadvantages because the users take their advantages for negative proposes. Some people use computers to do nothing but playing games, chatting, spam, create dirty information on the Net. In addition, sitting in front of the screen for long hours can lead to obesity, backache, and short-sightedness. Besides, people paying too much attention to online activities may become passive in real life because of their lack of communication. In short, everything has its 2 sides, so does the computer. Therefore, it is necessary that we use it for the right purposes.

2. 

A: Hi B, how was your trip to the countryside?

B: Oh, I love that trip very much, I wish that I can go back to the countryside again!

A: Wow, you're making me jealous! How fantastic was your trip?

B: I think you should go there once if you have time, it's very fantastic! I went swimming in the river, and you know, the water is pure, it isn't polluted like the city. And I climbed the trees with the children in the village. On top of the tree, I could see the village. I can only say with one word, that is Super-double-cool!!

A: OMG! I hope that I can go there once! Maybe next summer, I will ask my parents.

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