根据题意，选择最佳答案，或者选取最合适的答案。

1. The famous singer has agreed the prizes at the prize giving ceremory.
   to present present
解析：解析试题分析：句意：著名歌手已经同意在颁奖仪式上颁奖。agree to do同意做……结合句意，故选A 考点：考查非谓语动词的用法。
2. We can save our pocket money and donate it to those in need. —________!
   I agree You are welcome
解析：解析试题分析：句意：--我们能节省零花钱，并且捐献给需要帮助的人。--我同意！分析选项：第一项，我同意；第二项，不用谢；第三项，不用谢；第四项，没关系。结合语境，明确第一项正确。故选A 考点：考查交际用语。
3. What’s the ________ of the book? — 5 dollars.
   time price
解析：解析试题分析：句意：--这本书的价格是多少？--五美元。分析选项：time时间；price价格；date日期；color颜色。结合答语, 明确是对价格提问，因此选择第二项。故选B 考点：考查名词的用法。
4. We have no idea what ____ the sports exercises will have _____ human body in the future.
   cause; on effect; upon
解析：析试题分析：考查宾语从句及固定搭配。句意：我们对这些运动练习能否在未来给人类的身体产生影响还不确定。这里effect是名词，(what effect)宾语 the sports exercises will have，havee an effect on/upon为固定搭配，对……有影响。故选B。 考点：考查宾语从句及固定搭配
5. The boots ________ me well and I want to find a pair of trousers to ________ them.
   fit; fit fit; match
解析：解析试题分析：fit表示尺寸、大小或形状上的吻合；match多指大小、色调、形状、性质等方面的搭配。句意：这双靴子非常适合我，我想找到一条与靴子相配的裤子。根据句意故选B。 考点：考查动词辨析。
6. The driver was badly hurt and he needed_________ at once.
   a research an operation
解析：解析试题分析：句意：司机受了重伤，他需要马上动手术。a research研究；an operation手术；an experiment实验；a survey调查。所以选B。 考点：考查名词词义辨析。
7. ‘----- What do you think of my paper? ----- The _______ part is well written but the latter is just so-so.
   primary former
解析：解析试题分析：考查形容词词义辨析。A初级的，初步的；B前面的；句意：—你认为我的论文怎么样？—前面部分写得很好，但是后面部分就一般般了。根据句意可知所填形容词要和latter是反义词，所以使用former前面的。故B正确。
8. The air is deadly polluted because some factories don't ________ the rules to protect the environment.
   appreciate respect
解析：解析试题分析：考查动词辨析。句意：空气遭到了极其严重的污染，因为一些工厂不遵守环保法规。A欣赏，感激；B尊重，遵守（法律、道德规范），顾及，故选B。
9. I don’t want long pants. I need ____ pants.
   red short
解析：解析试题分析：句意：我不想要长的裤子，我需要短的裤子。A. red红； B. short短的。结合句意，故选B。
10. let’s have a _________about how to solve that problem.
    composition discussion
解析：解析试题分析：句意：让我们就怎样解决那个问题进行讨论吧。A. composition作文；B discussion讨论。结合句意，故选B。
11. What will Sam when his wife dies?
    tend to become of
解析：解析试题分析：考查动词词组的使用。A趋向，注意；B遭遇，发生……情况；句意：当萨姆的妻子死后他会发生什么？故选B。
12. Almost _______ of the students in this class wear glasses, that is, _______ of them.
    two thirds; 60 percent two thirds; 60 percents
解析：解析试题分析：考查分数的用法。分数由基数词和序数构成—分子用基数词，分母用序数词，分子超过“1”时，分母用复数；percent表示百分数，没有复数。句意：这个班级几乎有三分之二的学生戴眼镜，也就是说，有60%. 故选A。
13. He made up his mind to devote his life _____ pollution ______ happily.
    to prevent; from living to preventing; to live
解析：解析试题分析：句意：为了生活的幸福，他决定将他的一生都奉献给阻止环境污染。分析：考查固定短语devote to doing sth.将……奉献给…..，表示目的性，用动词不定式的形式。故选 B
14. Please give me ______ to write on.
    a paper a piece of paper
解析：解析试题分析：句意：请给我一张写字用的纸。paper纸。不可数名词，表示一张纸，用a piece of paper,多张纸，要把piece变成复数，纸不变化。故选C。
15. ’---What a lovely time he had ______ with his friend! And they had some time ______ about their study last Sunday.
    to discuss, to talk discussing, to talk
解析：解析试题分析：句意:-和他的朋友一起讨论他多么开心啊！而且他们还有一些时间去谈论他们上个周日的学习的事情。discuss 讨论；talk谈论。第一个空使用的句型是have a lovely time doing sth.做某事很开心，所以这里用动名词形式；第二个空是have time to do sth.有时间去做某事。故选B。
16. There is a peaceful and calm ________in the country, quite different from that of a big city.
    system atmosphere
解析：解析试题分析：考查名词辨析 A.system系统；B. atmosphere气氛；句意：乡村有平静祥和的气氛，不同于大城市。根据下方提到quite different from that of a big city故选B项。
17. John is a creative boy. He had a great _____ in yesterday’s speech competition.
    succeed success
解析：解析试题分析：句意：约翰是一个富有创新的孩子。他在昨天的演讲比赛中取得了巨大成功。Great是个形容词，后面应该用一个名词。故选B。
18. German Chancellor Angela Merkel says united Europe could fail if Eurozone(欧元区) ______ over debt problems in Greece, Italy and other weaker economies.
    breaks up pulls up
解析：解析试题分析：考查动词短语。A. breaks up分裂, 结束, 衰落, 分解B. B. pulls up（使）停下（住）；责备；从土里拔出来句意：德国总理安吉拉默克尔说，欧联盟可能会失败如果欧元区化解希腊意大利，和其他较弱的经济体的债务问题。
19. My sister Lucy is _______ different from me in looks, although we are twins.
    exactly entirely
解析：解析试题分析： 考查副词辨析 A. exactly确切地；B. entirely 整个地；句意：我的姐姐露西跟我长得一点也不象，虽然我们是双胞胎；根据句意选B项。
20. When your child wakes up in the morning, he should know that his daily ____ includes going to school, lunch and homework.
    routine destination
解析：解析试题分析：句意：当你的孩子早上醒来,他应该知道,他的日常生活包括上学,午饭和作业。四个选项的含义分别是：A. routine例行公事，日常工作，固定节目，B. destination目的地，终点 ，选A。