21.She is very dear to us. We have been prepared to do ________ it takes to save her life.

　　A. whichever B. however

　　C. whatever D. whoever

　　[解析]句意：她對我們非常珍貴。我們準(zhǔn)備不惜一切代價(jià)挽救她的生命。whatever=anything that，連接賓語從句，兼作 takes 的賓語。

　　[答案]C

　　22.Could I speak to ________ is in charge of International Sales please?

　　A. who B. what

　　C. whoever D. whatever

　　[解析]句意：我可以同負(fù)責(zé)管理國際銷售部的人通電話嗎?句中 to 為介詞，其后是名詞性從句，而從句中缺少主語和關(guān)聯(lián)詞，故選C。

　　[答案]C

　　23.The how­to book can be of help to ________ wants to do the job.

　　A. who B. whomever

　　C. no matter who D. whoever

　　[解析]句意：“how­to”這本書對任何一個(gè)想做這份工作的人來說都有用。to 是介詞，后接賓語從句，且從句中缺少主語。根據(jù)句子結(jié)構(gòu)和意義，只能選 whoever(anyone who)，who 只指某一人，是特指。C項(xiàng)只引出讓步狀語從句。

　　[答案]D

　　24.At first he hated the new job but decided to give himself a few months to see ________ it got any better.

　　A. when B. how

　　C. why D. if

　　[解析]句意：起初他討厭這份新工作，但他決定給自己幾個(gè)月的時(shí)間看工作是否會變得更好。根據(jù)語境，D項(xiàng) if(是否)符合題意。

　　[答案]D

　　25.A good friend of mine from ________ I was born showed up at my home right before I left for Beijing.

　　A. how B. whom

　　C. when D. which

　　[解析]句意：一個(gè)打我出生起就和我是好朋友的家伙，就在我前往北京之前來到了我家。from 為介詞，后接賓語從句，from when I was born從我出生時(shí)。

　　[答案]C

　　26.As a new diplomat, he often thinks of______ he can react more appropriately on such occasions.

　　A. what B. which

　　C. that D. how

　　[解析]句意：作為新上任的外交官，他經(jīng)常考慮如何在這樣的場合做出更恰當(dāng)?shù)姆磻?yīng)。根據(jù)句意，賓語從句缺少狀語。故用 how。

　　[答案]D

　　27.Men usually go straight to ________ they want and leave quickly when shopping.

　　A. what B. which

　　C. where D. that

　　[解析]句意：男人在購物的時(shí)候，通常直接奔向他們所想要的東西，然后迅速離開�？疾槊�詞性從句。what 引導(dǎo)賓語從句，并作賓語從句中 want 的賓語，意為“所……的東西”。

　　[答案]A

　　28.—I wonder ________ you'll water this kind of flower.

　　—Every other day.

　　A. how often B. how long

　　C. how soon D. how much

　　[解析]句意：—我想知道你多長時(shí)間澆一回這種花�！�隔一天一次。根據(jù)答語 every other day 可知，此處是詢問頻率的，故選A。

　　[答案]A

　　29.—Is there any possibility ________ you could pick me up at the airport?

　　—No problem.

　　A. when B. that

　　C. whether D. what

　　[解析]句意：—你可以到機(jī)場來接我嗎?—沒問題。that 引導(dǎo)同位語從句，說明 possibility 的內(nèi)容。

　　[答案]B

　　30. We should consider the students' request ________ the school library provide more books on popular science.

　　A. that B. when

　　C. which D. where

　　[解析]句意：我們應(yīng)當(dāng)考慮學(xué)生們的要求，即學(xué)校圖書館應(yīng)該多提供關(guān)于大眾科學(xué)方面的書籍。名詞 request 后的同位語從句句子結(jié)構(gòu)完整，不缺任何成分，故用 that 引導(dǎo)。

　　[答案]A

　　31. The fact has worried many scientists______ the earth is becoming warmer and warmer these years.

　　A. what B. which

　　C. that D. though

　　[解析]句意：近年來全球氣候不斷變暖，這一事實(shí)使得很多科學(xué)家感到擔(dān)憂。本題考查同位語從句。該題同位語從句結(jié)構(gòu)完整，故選連詞 that。

　　[答案]C

　　32.News came from the school office ________ Wang Lin had been admitted to Beijing University.

　　A. which B. what

　　C. that D. where

　　[解析]句意：學(xué)校辦公室傳出了王琳已經(jīng)被北京大學(xué)錄取的消息。這是一道考查同位語從句的題目，that 作為連詞引導(dǎo)同位語從句，作 news 的同位語。

　　[答案]C

　　33.It is obvious to the students ________ they should get well prepared for their future.

　　A. as B. which

　　C. whether D. that

　　[解析]句意：顯然，學(xué)生們應(yīng)該為他們的未來做好充分的準(zhǔn)備。that 引導(dǎo)主語從句，在從句中不作句子成分，it 是形式主語。as 引導(dǎo)定語從句或狀語從句;which 引導(dǎo)名詞性從句時(shí)意為“哪個(gè)(些)”;whether“是否”，此句中如用此詞，則語義矛盾。

　　[答案]D

　　34.It is not immediately clear ________ the financial crisis will soon be over.

　　A. since B. what

　　C. when D. whether

　　[解析]句意：金融危機(jī)是否能很快結(jié)束不會立刻明朗的。因從句中有時(shí)間狀語 soon，故排除C項(xiàng)。句中不缺少主語、表語，故排除B項(xiàng)。whether“是否”，為連詞，引導(dǎo)真正主語從句，it 為形式主語。

　　[答案]D