3.　　 Answer the following questions.

(1) why is it wrong in films and stories to show dinosaurs and people together?

_________________________________________________________

(2) Why do you think that humans are the cleverest animals on the earth?

六 语法

can’t help but do

can’t help to do

(can’t) help doing

2.　　 Put the order of development of life into a time line.

A　 insects and amphibians appear

B　 a solid ball

C　 reptiles appear

D　 a cloud of dust

E　 shellfish and other fish appear

F　 dinosaurs appear

G　 small plants grow on the water

H　 plants begin to grow on dry land

I　 presence of water

J　 mammals (including humans) appear

D _____ ______ _____ _____ _____ _____ _____ _____ _____

1.　　 Think about what you have read and make choices.

(1) Why was the earth different from other planets?

A .It produced a lot of heat.　 B . The water remained.

C .Water disappeared.　　　 D . It was the oldest planet.

(2) Why was life able to develop on the earth but not on other planets?

A . The earth had a solid shape.

B . The earth did not have barmful gases in its atmosphere.

C . The water stayed on the earth but not on other planets.

D . The earth was not too hot and not too cold.

(3) Why was it necessary for plants to grow before animals?

A . Animals needed plants to protect them from the sun.

B . Plants provided oxygen for animals to breathe.

C . Animals could hide from hunters in forests.

D . It was easier for plants to grow.

(4) What problem is caused by human beings?

A . They exist everywhere on the earth.

B . They cause global warming.

C . They find new methods of growing crops.

D . They enjoy hunting and fishing.

4.　　 困在了沙漠之中，于成纯只能希望自己能活下来。(be caught in)

3.　　 困在Omaha Beach上，他们只能不顾机枪扫射向前冲。(be caught)

2.　　 听到孩子的话，他们猛然意识到实际上国王没穿衣服。(wake up to)

1.　　 大雨使他们不能去野餐了。(prevent……from)

16.I send you ten dollars today ,the rest _____in a year.

A. follows　　　　 B. followed　　　 C. to follow　　 D. being followed精讲(不定式)

四 汉译英

15.She will tell us why she feels so strongly that each of us has a role ____ in making the earth a better place to live.

A. to have played　 B. to play　　　　 C. to be played　 D. to be playing