3．C　此题考查动词不定式作目的状语。

2．C　考查冠词。success和failure此时都是抽象名词具体化，前面通常要加不定冠词a。a success/failure在此表示“一个成功/失败的人”。

1．D　考查交际用语。根据Everyone present will burst into laughter可知选D。fun是不可数名词，前面通常不用冠词。No wonder难怪；No doubt肯定地，想必。

15．Lots of waste has been dumped into the river，which has led to________.

A．lots of fish having been killed

B．kill lots of fish

C．lots of fish being killed

D．lots of fish to kill

14．There was a________look on his face when he met with the________problem.

A．confusing；confusing　 　　　　 B．confused；confused

C．confusing；confused　 　　　　 D．confused；confusing

13．You’d better go there by train.The train ticket is________the airplane ticket.

A．as cheap three times as　 　　　　　　　 B．as three times cheap as

C．three times cheaper than　 　　 D．cheaper three times than

12．(2009年山东德州模拟)-Shall I give you a ride as you live so far away?

-Thank you，________.

A．it couldn’t be better　 　　　　　 B．of course you can

C．if you like　 　　　　　　　　　　　　　 D．it’s up to you

11．At times the balance in nature is________，resulting in a number of possibly unforeseen effects.

A．confused　 　　　　　　　　　　　　　 B．puzzled

C．disturbed　 　　　　　　　　　　　　　 D．troubled

10．If I ruled the world，I would________the world________everything that is bad.

A．get rid of；by　 　　　　　　　　　　 B．be rid of；by

C．rid；of　 　　　　　　　　　　　　　　　 D．get rid；of