A. temperature
B. serious
C. awareness
D. chemical
A. ability
B. agriculture
C. development
D. contaminate
A. government
B. agency
C. benefit
D. diversity
A. disappearance
B. vulnerable
C. conservation
D. generation
A. current
B. global
C. crisis
D. mankind
A. ban
B. danger
C. animal
D. dam
A. species
B. causes
C. industries
D. nations
A. endanger
B. verge
C. conserve
D. diversity
A. thousand
B. around
C. sound
D. young
A. thousand
B. threaten
C. other
D. think
A. for
B. to
C. with
D. on
A. at
B. upon
C. in
D. for
A. effort
B. benefit
C. exploitation
D. knowledge
A. a
B. an
C. the
D. Ø
A. surviving
B. to survive
C. living
D. to be alive
A. dangerously knocked over
B. in danger knocked over
C. in danger of being knocked over
D.in danger of knocking over
A. from
B. on
C. for
D. of
A. recognise
B. identify
C. realise
D. define
A. step
B. pace
C. speed
D. space
A. serious threatened
B. seriously threaten
C. seriously threatened
D. serious threaten
A. should / must
B. should not / might
C. needn't / may
D. mustn't / can't
A. must have left
B. should have left
C. must be leaving
D. needn't leave
A. needn't
B. couldn't
C. mayn't
D. mustn't
A. should have floated
B. must be floating
C. would be floating
D. will be floating
A. didn't
B. mustn't
C. hasn't
D. shouldn't
A. How Ecosystems Work Better
B. The Loss of Biodiversity
C. The Variety of Species
D. Natural Mechanisms
A. Herbs
B. Pine
C. Eucalyptus
D. Rye
A. To show natural mechanisms at work.
B. To give examples of the loss of biodiversity.
C. To give examples of variety of species.
D. To show how ecosystems can work better.
A. The basic processes are altered.
B. There is loss of biodiversity.
C. There is global warming.
D. There is a change in the climate.
A. Animals
B. Meadows
C. Species
D. Rain forests
A. We are quite ready to walk.
B. We would much prefer to wait for the bus.
C. We'll have to walk because the bus is late.
D.We think we will be late if we walk.
A. I think we must go to Bristol on Monday.
B. I think we would be allowed to go to Bristol on Monday.
C. I think Monday is the only day we can manage for the trip.
D.I think Monday would be a good day for us to go to Bristol.
A. Mrs Smith knew Sam had gone to the library.
B. Mrs Smith wasn't sure where Sam had gone.
C. Sam was allowed to go to the library.
D.Sam had certainly not gone to the library.
A. The story he told us was magical.
B. It's possible that he told an unreal story.
C. The story he told us was beyond belief.
D.It's possible that he told a real story.
A. You needn't do the test.
B. You don't need to do the test.
C. You don't have to do the test.
D.All are correct.
A. endangerment
B. reasons
C. destruction
D. by human activities
A. Although
B. adapt
C. that
D. survive
A. Without
B. particularly
C. could
D. survive
A. Such
B. drainage
C. clearing
D. has destroyed
A. fragmentation
B. have caused
C. species
D. with
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