8.____ caused the accident is still a complete mystery.
A. What B. That C. How D. Where
7.____ leaves the room last ought to turn off the lights.
A. Anyone B. The reason C. Whoever D. Who
6.____ you have done might do harm to other people.
A. That B. What C. Which D. This
5._____ he said at the meeting astonished everybody present.
A. What B. That C. The fact D. The matter
4.The whole family were worried about Jane because no one was aware ______she had gone .
A. that where B. of the place which C. of what D. of where
3.____ is a fact that English is being accepted as an international language.
A. There B. This C. That D. It
2. It worried her a bit ____ her hair was turning grey.
A. while B. that C. if D. for
例1、_____ in the regulations that you should not tell other people the password of your e-mail account.
A. What is required B. What requires
C. It is required D. It requires
答案為C
[解析] 本句的結構為It is +動詞的過去分詞+that 引導主語從句。經常用于這種結構的動詞還有say, report, think, hope, expect, consider, suggest等。
例2、There is a new problem involved in the popularity of private cars _________ road conditions need_________.
A. that ...to be improved B. which...to be improved
C. where ...improving D .when...improving
答案為A。
[解析] 考查同位語從句。因為先行詞在從句中不作任何成份，因此用關系詞that，故B、C、D均不正確。對于第2個空格，need既可作實義動詞，又可作情態動詞。作實義動詞時后跟動詞不定式，即need to do sth.，另外 road conditions與improve之間是被動關系，因此是need to be improved(need to be done=need doing)。譯文：私家車受歡迎所涉及到的新問題是道路狀況需要改善。
例3、_________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
答案為B。
[解析] what引導主語從句，在主語從句中作主語；that引導表語從句，在表語從句中起連接作用。
例4、There's a feeling in me _______we'll never know what a UFO is-not ever.
A. that B. which C. of which D. what
答案為A。
[解析] 同位語從句that we'll never know what a UFO is-not ever作a feeling的同位語，解釋a feeling的具體內容。that連接同位語從句時，只起連接作用不作從句的任何成分。譯文：我有一個這樣的感覺，我們不會知道什么是UFO--永遠不會。
例5、Perseverance is a kind of quality-and that's _______ it takes to do anything well.
A. what B. that C. which D. why
答案為A。
[解析] 這是一個表語從句，what在表語從句中作takes的賓語，構成“It takes sth. to do sth.”的句型。譯文：堅定不移是一種品質--堅定不移使人們做好任何事情。
例6、When you answer questions in a job interview, please remember the golden rule: Always give the monkey exactly _______he wants.
A. what B. which C. when D. that
答案為A。
[解析] 這是一個賓語從句，wants后面缺少賓語，所以要填寫what。Always give the monkey exactly what he wants是一句諺語，意思是“永遠不折不扣地給予對方他想要的東西。”譯文：當你在找工作面試回答問題時，請記住這條黃金定律：永遠不折不扣地給予對方他想要的東西。
例7、Information has been put forward ________ more middle school graduates will be admitted into universities.
A. while B. that C. when D. as
答案為B。
[解析] 這是一個同位語從句。that引導從句作information的同位語，解釋information的具體內容。注意：that和what引導名詞性從句(主語、賓語、表語和同位語從句)的區別：that引導名詞性從句，只起引導作用，在從句中不作成分。that引導賓語從句時，that可省略，而在其他三個從句中，that雖不作成份，一般也不省略；what在這四個名詞從句中一定作成分，作主語、賓語、表語或補語。譯文：有消息說，更多的中學畢業生將進入大學。
例8、What the doctors really doubt is ________ my mother will recover from the serious disease soon.
A. when B. how C. whether D. why
答案選C。
[解析] 這是一個表語從句。根據doubt一詞可知，所懷疑的應是是否能治好病，所以要填whether。這句話的意思是“醫生真的懷疑我媽媽是否能從重病中很快康復。”
例9、-I drove to Zhuhai for the air show last week.
-Is that ________ you had a few days off?
A. why B. when C. what D. where
答案為A。
[解析] 這是一個why引導的表語從句，表示原因。這句話的意思是“這就是你為什么離開幾天的原因嗎?”
例10、________she couldn't understand was ________fewer and fewer students showed interest in her lessons.
A. What...why B. That...what C. What...because D. Why...that
答案選A。
[解析] 主語從句she couldn't understand缺少賓語，要用What引導。表語從句fewer and fewer students showed interest in her lessons是一個完整的句子，要用why引導，意思是“為什么越來越少的學生對她的課感興趣”。
第三節 鞏固練習
Direction: Beneath each of the following sentences there are four choices marked A, B, C and D. Choose the best answer that completes the sentence.
1. ____ the 2012 Olympic Games will be held in Paris is not known yet
A. Whenever B. If C. Whether D. That
5. 選擇性疑問從句
選擇性疑問從句由關聯詞whether…or或whether…or not構成，例如：
Please tell me whether they are Swedish or Danish. 請告訴我他們是瑞典人還是丹麥人。
I don't care whether you like the plan or not.我不在乎你是否喜歡該計劃。
4. That-從句作主語通常用it作先行詞，而將that-從句置于句末，例如：
It is quite clear that the whole project is doomed to failure.很清楚，整個計劃注定要失敗。
It's a pity that you should have to leave. 你非走不可真是件憾事。
用it作形式主語的that-從句有以下四種不同的搭配關系：
a. It + be + adj. + that從句
It is necessary that… 有必要……
It is important that… 重要的是……
It is obvious that… 很明顯……
b. It + be + 過去分詞 + that從句
It is believed that… 人們相信……
It is known to all that… 從所周知……
It has been decided that… 已決定……
c. It + be + n. + that從句 It is common knowledge that… ……是常識
It is a surprise that… 令人驚奇的是……
It is a fact that… 事實是……
d. It + be + vi. + that從句
It appears that… 似乎……
It happens that… 碰巧……
It occurred to me that… 我突然想起……
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