Unit4 根据句意和单词首字母或括号内的汉语提示，写出下列各句中所缺单词的正确形式。1.The_（气氛）changed as she walked in. 答案：atmosphere 2.The professor has brought in a good s of teaching languages from abroad. 答案：system 3.The Palestinian teenagers were involved in（卷入） v clashes（冲突） with the Israeli soldiers. 解析：选择形容词是因为它后面有名词 clashes（冲突） 。 答案：violent 4.With the d of modern agriculture and industry ,our everyday life has improved a lot. 答案：development 5. G speaking,girls are better at learning to speak languages than boys. 答案：Generally 6.The Chinese government did very well in p SARS from spreading. 解析： 因为空格前有介词 in，所以此处需要名词形式。 答案：preventing 7.She asked them not to discuss the matter in her _（在场）. 答案：presence 8.Im d in you;I expected you to win. 解析：动词过去分词形式作形容词表示“人”的感受，主语是人；动词现在分词形式作形容 词表示“事物”的特征。 答案：disappointed 9.The days are g getting longer and longer. 解析： 副词形式用来修饰谓语动词。 答案：gradually 10.Try and c up a bit; life isnt that bad! 答案：cheer 单项选择 1. _made the school proud was _ more than 90% of the students had been admitted to key universities. A.What;because B.What;that C.That;what D.That;because 解析：第一空为 what 引导的主语从句，what 在从句中作主语；第二空为 that 引导的表语 从句，that 不作句子成分。表语从句所表达的是一个事实，而不是原因，因此不能选 A。 答案：B 2. _she couldnt understand was _ fewer and fewer students showed interest in her lessons. A.What;why B.That;what C.What;because D.Why;that 解析：主语从句缺少主语，故选 what；根据句意，她所不能明白的是为什么、而不是因为 什么越来越少的学生对她的可感兴趣，所以，表语从句须由 why 引导而不能由 because 引 导。答案：A3. _has helped to save the drowning girl is worth praising. A.Who B.The one C.Anyone D.Whoever 解析：whoever=anybody who,强调“人”，既作从句的主语，又作整个句子的主语；who 在本 句中只能作从句的主语；B、C 两项后加 that 才对。 答案：D 4.A satellite is _object traveling in orbit round another object in space. A.the;/；the B.an;an;a C.the;an;a D.an;an;/ 解析：本题考查冠词的用法，in space “在太空中”，space 前不加冠词；object 与 orbit 是指 类别，故用 an。 答案：D 5.The camera（相机）isnt _.It still _where I _ it a month ago. A.missed;lies;lay B.missing;lies;laid C.gone;lays;laid D.lost;lays;lay 解析：第一个空表示“丢了”，B、C、D 三项均可，missed 不能表示此意，故排除 A 项；第 二个空 lie 表示“位于”，而 lay 表示“放置”；至此 C,D 两项也可以排除掉了。第三空 lay（laid）是及物动词，意为 “放置”。 答案：B 6.Shops should _open till late in the evening. A.be remained B.remain C.leave D.keeps 解析：remain 作系动词时后接形容词、分词、名词、介词短语等，构成系表结构，表示 “（继续）保持，仍然处于某种状态”。A、D 两项动词形式不对；C 项用作使役动词缺少对 象，因此要说成 Shops should be left open.在语法上才对。 答案：B 7.They _that he works all night. A.expected B.wished C.hoped D.required 解析：require 可接 that-clause，从句中的谓语用“should+动词原形”，should 可省略；expect 和 hope 后接宾语从句时，从句的谓语动词用正常的形式；wish 接宾语从句，从句的谓语 动词用虚拟形式，即时态要产生变化。 答案：D 8.The_is doing an experiment in _ with some_. A.chemistry; chemist; chemicals B.chemicals; chemistry; chemist C.chemist; chemistry; chemicals D.chemistry; chemicals; chemist 解析：chemist 指“药剂师或化学家”，chemistry 意为“化学”，chemicals 指“化学物质”。答 案：C 9.Thats the best way you thought of _ into dangerous areas. A.stopping people to get B.to stop people getting C.keeping people getting D.preventing people in getting 解析：句中 you thought of.是中心词 way 的后置定语从句，way 是介词 of 的宾语；空格中 缺少的也是定语，而不是 of 的宾语。stop sb.doing sth.是固定短语。 答案：B10.How do you find the lecture by Mr Lee? _. A.Its a fine day B.Very boring C.In the conference hall D.By bicycle 解析：How do you like/find.? 意为“你觉得怎么样？”该句型用来询问对方对某人或某 物的看法。A、C、D 都是答非所问。 答案：B 11.We are _ happy to hear of the success of their team. A.enough B.more than C.many more D.much many 解析：“more than+形容词/副词/动词”这种形式用来表示被修饰的形容词、副词或动词的强 烈程度，其目的是为了加强语气，意思是“非常；岂止；极其”。enough 修饰形容词、副词 需放在他们的后面； many more 用于修是可数名词；没有 much many 这种用法。 答案：B 12.We wont give up _ we should fail ten times. A.even if B.since C.whether D.until 解析：even if/even though 意为“即使”。其他三个选项均讲不通。 答案：A 13.What will happen if I smoke here? Anyone _ here will be punished. A.seen smoking B.seeing smoke C.seeing smoking D.seen smoke 解析：可补全为“Anyone who is seen smoking”。此处应是被看见抽烟的人，所以 B 和 C 项 被排除；如选 D，应该在 smoke 前加 to。 答案：A 14.The picture _ on the wall is painted by my nephew. A.having hung B.hanging C.hangs D.being hung 解析：hang 在本题中用作不及物动词，现在分词 hanging 作 the picture 的定语，表示主动 关系；being hung 表示一个被动的动作正在发生，不符合题意； 现在分词的完成式 having hung 不能作定语，仅作状语。 答案：B 15.Our neighbor has _ ours. A.as a big house as B.as big a house as C.the same big house as D.a house the same big as 解析：句意为“我们的邻居有一座和我们的一样大的房子”。as.as 中间接形容词或副词的 原级，中间有名词时用 as+adj.+a（an）+n.+as 结构。C 项表示“同一座大房子”；D 选项中，如果把 big 改为 size 即可选用。 答案：B.单词拼写 根据首字母或者汉语注释写出单词的正确形式。 1.City life is very d from country life. 答案：different 2.The fire s from the factory to the house nearby.答案：spread 3.In this v conflict,about 20 common people died. 答案：violent 4.It allowed the earth to dissolve h gases,which formed part of the atmosphere. 答案：harmful 5.With the d of society,we come to realize the importance of the balance of nature. 答案：development 6.Your _ (出场) is requested at the club meeting on Friday. 答案：presence 7.Pieces of