TIẾT 16: UNIT 9
I/Choose the best answer.
1/ We must be careful not to do anything that might ...... the economic recovery.
A. danger B. endanger C. endangered D. dangerous
2/ The turtle has a long life .........................
A. line B. length C. span D. age
3/ ............... refers to the existence of different plants & animals in a place.
A. undersea B. plant C. biodiversity D. marine
4/ Anyone caught throwing ......... here should be fined.
A. rubbish B. bag C. money D. flowers
5/ The ......... is divided into five different parts named the Pacific, Atlantic, Indian, Antarctic & Arctic.
A. earth B. woods C. ocean D. universe
6/ She is crazy about exploring marine life.
A. forest B. sea C. earth D. gulf
7/ The whale is an endangered species.
A. threatened B. contaminated C. mysterious D. cheap
8/ How many offspring does a cat often have?
A. mates B. friends C. young cats D. seasons
9/ It was great to see monkeys in their natural habitat.
A. sky B. land C. forest D. home
10/ Strong currents are dangerous for swimmers.
A. suits B. flows C. sea D. climates
11/ Birds migrate in winter.
A. dies B. travel C. hunt D. collapse
12. ……….. means : the movement of something around a closed system.
A. circulation B. conservation C. preservation D. crop
13. The synonym of “extremely small” is: ………..
A. huge B. tiny C. large D. oversize
14. A ………. is a large area of sea that is partly surrounded by land.
A. gulf B. seabed C. ocean D. river
15. …………..refers to the existence of different plants and animals in a place.
A. undersea B. plant C. biodiversity D. marine
16. The ocean ……… into five different parts.
A. is divide B. divide C. is divided D. divided
17. The air is becoming contaminated.
A. polluted B. eliminated C. destroyed D. hurt
18. Liquid which flows off from something means ____.
A. remove B. run-off C. eliminate D. produce
19. ____ the biodiversity were maintained, marine life would be at risk.
A. unless B. if C. when D. as
20. Thousands of hectares of forest are _____ each year.
A. destroyed B. discover C. destroying D. find
21. A ____ is a large area of sea that is partly surrounded by land.
A. sea B. land C. mountain D. gulf
II. Read the passage & circle the best answer:
These days it is impossible to open a newspaper (1)_____ reading about the (2)_____ we are doing to the environment. The earth is being (3)_____& the future looks bad. What can each of us do? We can’t clean up our( 4)____ rivers and seas overnight. Nor we can stop the disappearance of plants & animals. But we can stop (5)____ the problem while (6)_____ search for answers, and laws are passed in nature’s defence.
1. A. with B. without C. for D. about
2. A. damage B. danger C. problem D. chance
3. A. threat B. threatened C. threatening D. protected
4. A. polluted B. danger C. clear D. destroyed
5. A. worsen B. worsening C. worst D. worse
6. A. scientists B. sciences C. scientist D. Scientific
III. Choose the correct option a, b, c or d to complete this, passage.Dolphins are known as cesareans or marine (1)................they breathe air, they are warm-blood, and they bear live young ones called (2) ................
The size of dolphins very greatly. The smallest dolphins is just about 50 kg in weight and 1.2 meters in length (3) ................. the largest one can weigh up to 8.200 kg and is 10 meters long.
Dolphins are sociable creatures. They swim together in group known as (4) ..............They show great ability in the water and you can