1.27. A. dirty B. dark C. clean D. hot

5.32.

A. 　 then

B. 　 when

C. 　 suddenly

D. 　 and

2.21通读下面的短文,掌握其大意。然后,从每小题的四个选项中选出最佳选项。
The tallest building in America’s capital city is the Washington Monument(纪念碑).It is( 21 )for George Washington, the first president of the United States. He( 22 )the American colonies (殖民地)in the War of Independence (独立)against England from 1775 to 1783. As president, he( 23 )the new United States of America through its first difficult( 24 ).
The monument is one of the most popular (25) in the world. Lights shine on it at night. It can usually be( 26 )from far away.

A. 　covered

B. 　 named

C. 　 taken

D. 　 acted

1.13Let me () what I mean.

A. 　 explain

B. 　 explains

C. 　 toexplain

D. 　 explaining

1.16It doesn’t matter whether you win ()lose.

A. 　 either

B. 　 or

C. 　 for

D. 　 and

4.31.

A. 　 followed

B. 　 chosen

C. 　 protected

D. 　 treated

2.30.

A. 　 ruled

B. 　 destroyed

C. 　 defeated

D. 　 attacked

3.6词汇与语法知识

D. 　 is arriving

3.19 —Do you mind if I open the window?
---().

A. 　Yes, please

B. 　 No, go ahead

C. 　 No, please don’t

D. 　 Yes, you’d better do

3.23.

A. 　 caused

B. 　 fought

C. 　 caught

D. 　 treated

2.9对最后一段有关“病毒”内容的理解,不正确的一项是( )

A. 　作者认为,我们从前单纯地把病毒看成是疾病与死亡的传播者可能是一种误解。

B. 　作者认为,病毒是基因的携带者,它们的“舞蹈”可能为生物进化提供了机会。

C. 　作者把病毒比作蜜蜂,用诗一样的语言形容它的行为,毫无贬意,富有情趣。

D. 　作者认为病毒性疾病是病毒偶然失误造成的“意外事故”,因而是可以原谅的。