22. A. friendly　　　 B. close　　　　　　 C. connected　　　 　　D. natural

23. A. Instead　　　 B. However　　　　 C. Sometimes　　　　 D. Finally

21. A. survive　　　 B. act　　　　　　　 C. study　　　　　　　 D. peak

12．[2010·成都三诊]It is in some parts of the world 　　　　goats, rather than cows，serve as an important source of milk.

　　 A．there　　 　　　 B．in which　　 　 C．where　　 　　　 D．that

12D考查强调句型。此句强调介词短语in some parts of the world。

11. [2010·山西康杰中学5月模拟]He must be helping the old man to water the flowers, ______?

　　 A. is he 　 　　 B. isn’t he　　　　　　 C. must he　　　　　 D. mustn’t he

11B考查反义疑问句的构成。前文为肯定含义，后文用否定形式；根据前文的谓语动词形式可知用isn’t。

10．[2010·陕西宝鸡市质检三]There happened to be nobody under the wall when it fell down, ____ ?

　　 A．wasn't there　　 　　　　　　　　　　　　　　　　　 B．was there　

　　 C．didn't there　　 　　　　　　　　　　　　　　　　　 D．did there　

10D考查反意疑问句。主句句意为否定，故用did there。

9. [2010·陕西西工大附中6次训练]That day everyone wondered _____ the baby of four went to her mother’s office.

A. how was it that　 　　B. how it was that　 　

C. how was it 　　　　　 D. how was that　　

9B考查宾语从句及强调句型。Wonder后为宾语从句，宾语从句中又用了强调句型。

8. [2010·保定市高三二模]________is the love and joint efforts of Chinese people that will help Yu Shu go through the difficulty.

　 A.Such　　　　 　　B.That

　 C.What　　　　　　 D.It

8D考查强调句型。句意：正是中国人民的爱和共同努力帮助玉树走出困境。

7. [2010·拉萨中学6次月考]It was ________ she got home ________ she found her diamond necklace missing.

A. not until; that　　 B. not until; when　　 C. until; when　 　D. until; that

7A考查强调句型。此处被强调的部分为：not until she got home。

6．[2010·河北唐山市二模]Some great people said it was their primary school teachers that they were fond of　　　 influenced their whole lives．

　 A．what　　 B．who　　 C．as D．which

6B考查强调句型。强调的是主语heir primary school teachers，其后又带了一个定语从句that they were fond of，当强调的主语指人时可用who代替that，这里也是为了避免重复。

5. [2010·浙江宁波十校联考] I try to understand __________ that prevents so many Chinese from being as happy as one might expect.

A. why is it　 　　　 B. what is it　　 　 C. why it is　 　　　 D. what it is

5D考查强调句型。此句understand后为宾语从句，强调句型强调了其主语what。