12. I do well in playing football, _______. (我妹妹也行。)A. so my sister does(×)B. so does my sister(√)
Li Lei is really a football fan. --- _______. (确实这样.) A. So is he(×) B. So he is(√)
[析] “so+be动词/助动词+主语”的倒装结构表示前面所述情况也适用于后者，意为“……也是这样”;“so+主语+be动词/助动词”的陈述结构表示对前述情况的肯定，意为“……确实如此”。
19. 例--- He didn’t go to school yesterday, did he?-- _______, though he didn’t feel very well.
A. No, he didn’t (×) B. Yes, he did (√)
例--- Don’t you usually come to school by bike?-- _______. But I sometimes walk.
A. No, I don’t (×) B. Yes, I do (√)
[析] 习惯上英语中的yes意为“是的”，no意为“不”，但在“前否后肯”的反意疑问句或否定疑问句中，yes意为“不”，no意为“是的”。
20.---- Excuse me, is the supermarket far from here?---- No，it's about _______.
A. 7 minutes walk B. 7 minute walk C. 7 minutes' walk D. 7 minute's walk
答案为C。本题考查名词所有格用法。当名词的复数以-s结尾时，则只需要加“'”即可，则“7分钟的距离”为“7 minutes' walk”。
21. You can not imagine how much I ______ on this dress. Is it beautiful?
A. paid B. took C. cost D. spent
[剖析] 答案为D。本题考察四个表“花费”的动词辨析。主语为人，且和介词on搭配的动词是spend。
22. ---- Do you know _____ university student who is talking with Joe?---- Yes， she，s my cousin, Kate.
A. a B. an C. the D. /
[剖析] 答案为C。university虽然以元音字母u开头，但其前若使用不定冠词时，则要用a.不过此题中不能使用不定冠词，而是特指和Joe说话的那个大学生，故要选the。
23. The number of giant pandas is getting ______ because their living areas are becoming farmlands.
A. less and less B. larger and larger C. smaller and smaller D. fewer and
fewer
[剖析] 答案为C。句意为“大熊猫的数量越来越少因为他们的生存空间正逐渐变成农场”。本题中四个选项都是“比较级+ and + 比较级”的结构，表示“越来越……”。主语为number，只能和large或small搭配。而结合句意可判断答案为C。
24. Be careful when you come _______ the street，because the traffic is very busy
at the moment.A. across B. behind C. between D. over
