【答案】本题的正确选项为 B.
【练习21】She can't help _____ the house because she's busy making a cake.
A. to clean B. cleaning C. cleaned D. being cleaned
【错解分析】容易简单地套用can't help doing从而就使同学们形成了思维定势而误选B。 【解题指导】根据句意可以得知，help在句中是“帮助”的意思而不是“禁不住”的意思，to可有可无，故选A。 【答案】A
【示例22】 --- What do you think made Mary so upset
--- ____ her new bicycle.
A. As she lost B. Lost C. Losing D. Because of losing.
【错解分析】典型错误D 错因分析: 此题迷惑项为D,这是犯了Chinglish之错.
【解题指导】what只能用动名词短语Losing her new bicycle来代替.答案B为过去分词不作主语,答案A不构成主语从句.若将答语补充完整,全句为Losing her new bicycle made Mary so upset.因此缺少主语,正确答案为C. 【答案】本题的正确选项为C..
【练习22】— What should I do with the text?
—_____ the topic sentence of each paragraph.
A. Finding out B. Found out C. Find out D. To find out 【错解分析】此题极易误选A.认为是动名词短语作do的宾语.
【解题指导】.本题属于承前省略补全句子应为You should find out the topic sentence of each paragraph.因此应选C 【答案】C
【示例23】Who did the teacher have ___ an article for the wall newspaper just now
A. written B. writing C. write D. to write 【错解分析】典型错误A 错因分析：受have done的影响而误选.
【解题指导】此处所用句型为have sb.do sth不妨把who换为Tom,利用还原句子结构的方法变为肯定句:The teacher had Tom write an article for the wall newspaper just now. 答案应选C. 【答案】本题的正确选项为 C.
【练习23】Is this factory ______ you visited the other day？
A. the one B. that C. where D. when
【错解分析】本题容易误选B，这是由于没有把句子还原正确而选了B。
【解题指导】This factory is ______ you visited the other day．句中is后面无表浯，定语从句也没有先行词，故应填入既能作表语又能作先行词的the one 【答案】A
【示例24】Tom is such an excellent boy _________ all the teachers like.
A. that B. who C. as D. whom
【错解分析】典型错误A 错因分析：多同学一看到题干中的such，再联系到选项中的 that，便认为这是考查such … that …句式。
【解题指导】 但是从句中缺少like的宾语，应该是定语从句，前面有了such，应用as，而不是that。
【答案】本题的正确选项为 C.
【练习24】David is such a good boy _________ all the teachers like him.
A. that B. who C. as D. whom 【错解分析】若分不清楚句子结构，以为是定语从句容易误选C。
【解题指导】因为在such … that … (如此……以至……)结构中，that 引导的是结果状语从句，句子不缺少成分。 【答案】A
【示例25】They put forward a lot of plans at the meeting, none of _________ were carried out in
their work.
A. which B. them C. what D. that
【错解分析】典型错误B 错因分析： 以为缺主语而选them。
【解题指导】 题干中是两个句子，缺少关联词，因此应用主从复合句，先行词是plans，是非限制性定语从句，用which引导。 【答案】本题的正确选项为A .
【练习25】They put forward a lot of plans at the meeting, none of _________ carried out in their
work.
A. which B. them C. what D. that
【错解分析】由于没有审清题干而误以为 是非限制性定语从句而选择了A。
【解题指导】none of them carried out in their work 是独立主格结构，其中的 carried out 为过去分词，与上题相比这里缺少了were。 【答案】B
【示例26】If the man is only interested in your looks, _________ just shows how shallow he is.
A. as B. which C. what D. that
【错解分析】典型错误A或B.错因分析: 误以为这是非限制性定语从句。
【解题指导】注意逗号前是一个条件状语从句，逗号后是该状语从句的主句，that 在此代表前文所述的情况，用作主句的主语。 【答案】本题的正确选项为D.
【练习26】Mary felt sad over the loss of photos she had shot in Australia, _________that was a
memory she especially treasured.
A. as B. which C. when D. where 【错解分析】本题容易误以为是定语从句而选择D。
【解题指导】其实，本题是一个原因状语从句，as相当于because。 【答案】A
【示例27】It was in the small house _________ was built with stones by his father _________ he
spent his childhood.
A. which, that B. that, which C. which, which D. that, where
【错解分析】典型错误B，C或D.错因分析: 几个干扰项均有可能误选，主要是分不清为强调句型，或即使分清为强调句型，也分不清强调哪一个成分。
【解题指导】第一空填 which，用以引导定语从句；第二空填that，为强调句的结构词，被强调部分为 in the small house (以及修饰它的定语从句 which was built with stones by his father)。此题难就难在强调句型中套用了定语从句。 【答案】本题的正确选项为A.
【练习27】---“Was it under the tree _________ you were away talking to a friend?”
---“Sure. But when I got back there, the bike was gone.
A. that B. where C. which D. while 【错解分析】此题很容易误选A，认为这是强调句型。
【解题指导】做好此题的关键是正确理解上下文的语境。在此句中，it 是代词，指代 the bike，句意为：“当你离开去同朋友谈话的时候，你的自行车是在这树下吗?”“当然，但当我回来时，自行车就不见了。”现在反过来分析一下，假若选A，将此句判为强调句，句子即为 Was it under the tree that you were away talking to a friend? 若进一步转换为非强调句，句子则为 Under the tree while you were talking to a friend，句意显然很荒唐。 【答案】D
【示例28】Mr. White was much disappointed to see the washing machine she had had ____ went
wrong again.
A. it B. it repaired C. repaired D. to be repaired
【错解分析】典型错误B.错因分析: 这是由于没有分清句子成分所致。
【解题指导】she had had repaired为定语从句,修饰the washing machine, 省略掉的that作第二个had的宾语。定语从句中有一个固定搭配have sth done, 其中sth就是先行词the washing machine，
【答案】本题的正确选项为C.
【练习28】Who would you rather ______ the report instead of you？
A. have write B. have to write C. write D. have written 【错解分析】学生容易误以为would rather do/have done 而误选C或D。
【解题指导】此题考查的是结构：have sb do sth。可以把它变成陈述句来理解：I would rather have Tom write the report instead of myself．再就Tom提问就变成了Who(m) would you rather have write the report instead of you？ 【答案】A
【示例29】The construction of the laboratory ________ by te end of next month.
A. must be completed B. must have been completed C. will be completing D. will have been completing
【错解分析】典型错误B.错因分析:学生容易看到by the end of next month.时间状语而误选B。 【解题指导】其实，must have been completed是对过去发生的事情的肯定推测。而没有完成的
意思。CD没有用被动语态，排除。A 表示必须完成。 【答案】本题的正确选项为A.
【练习29】-----Hurry up. Xiao Shenyang is coming.
------ Oh, I was afraid that we_____.
A. already miss him B. had already missed him C. will miss him already D. have already missed him
【错解分析】受Xiao Shenyang is coming影响而误选A或C，或没注意I was afraid而误选D。 【解题指导】考查语境下的时态。从I was afraid 用过去时我们可以看出that从句应该用过去完成时。 【答案】B
【示例30】 has recently been done to provide more buses for the people , a shortage of
public vehicles remains a serious problem .
A. That B. What C. In spite of what D. Though what
【错解分析】典型错误D.错因分析:学生可能会以为In spite of后不能跟从句而首先排除了C。 【解题指导】句意为 “尽管最近已经采取了许多措施给人们提供更多的公交车，但公交车辆的缺乏仍是个严峻的问题。”what 引导的是名词性从句， 相当于名词或名词性短语，不可放在though 后， 但可放在in spite of后。 【答案】本题的正确选项为C.
【练习30】Scientists believe human cloning is just a matter of time but the assumption ______
human clones have already been born hasn’t been proved yet.
A. that B. which C. whether D. when 【错解分析】本题若分不清楚assumption后跟同位语从句就很容易选错。
【解题指导】在一些抽象名词如belief, thought, idea, news, word(消息)assumption等后常常跟同位语从句，因此，根据句意可以得知，应选A。 【答案】A