1.The (change) are gradual and require a lot of efforts and work，like cleaning up a polluted river.
答案 changes
2.But Jane knew from past experience that her (choose) of ties hardly ever pleased her father.
解析 考查名词。根据句子结构可知，此处为宾语从句的主语，且在形容词性物主代词her之后一定要用名词形式。
答案 choice
3. Some like to call their friends，sometimes many times day.
解析 考查不定冠词。有些人喜欢给朋友打电话，有时一天打很多次。a每一，表泛指，相当于per。
答案 a
4. I remember taking English class in college on the short story.
解析 考查不定冠词。我记得在大学时上了一节关于短篇小说的英语课。名词class为可数名词，前面缺少冠词修饰，注意English前的冠词应为an。
答案 an
5. Now years later，this river is one of most outstanding examples of environmental clean－up.
解析 考查定冠词。这里是“one of＋ the ＋可数名词的复数”结构，表示“……之一”。
答案 the
6. On the other hand, chopsticks reflect (gentle) and kindness.
解析 考查名词。另一方面，筷子所反映的是彬彬有礼与友好。根据and连接两个并列成分以及名词kindness可知，此处要用名词作动词reflect的宾语。
答案 gentleness
7.So are most of the (express) made with the word hot.
解析 考查名词。most of the后跟名词形式，而且此处要用复数形式。
答案 expressions
8. Actually we can encourage ourselves to work efficiently, full of (determine).
解析 考查名词。介词of 后面应该用名词作宾语。
答案 determination
9. I named them “cookies” because I always feel that children can bring great happiness and (excite) to my life.
解析 考查名词。该处需要excite的名词形式和happiness一起作bring的宾语。
答案 excitement
10.In the forest, I really want to see elephant close up.
解析 考查不定冠词。elephant为可数名词，表泛指要用不定冠词an。
答案 an
11.The small damage may not seem worth all trouble, but what if I had been seriously injured?
解析 考查定冠词。小损伤好象不值得这么麻烦。此处表示特指。
答案 the
12. Scott was much better student than his sister, and has been working so hard for the last few months.
解析 考查不定冠词。斯科特是一个比他姐姐成绩更好的学生。此处为描述，故要用不定冠词。
答案 a
13. First start by making quick list of how you can show respect at school.
解析 考查不定冠词。make a list of 列……的表，对……列清单。
答案 a
14. He wants to be a (write).
答案 writer
15.All life (challenge) bring about an ending and the chance for (begin).
答案 challenges；beginning
16. It's still a useful and pleasant form of (communicate).
解析 考查名词。介词of之后要用名词形式communication。
答案 communication
17. To be interested in these things is silly because it is none of their to know what their neighbours do or are doing.
解析 考查名词。对这些事情感兴趣是很傻的，因为知道邻居做了什么或者正在做什么都与他们自己无关。It's none of one's business与某人无关。
答案 business
18. I usually surf net，read news and anything I am interested in，check e－mails or chat with other people.
解析 考查定冠词。固定表达surf the net浏览网络，网上冲浪。
答案 the
19. One day，about ten years ago，I saw elderly couple come in with a little girl in a wheelchair.
答案 an
20. She programs us with all possible moves she has seen.
解析 考查定冠词的用法。她把看到过的所有的行动步骤都给我们进行编程。根据后面的定语从句she has seen可知，这里是特指，故要用the。学
答案 the
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