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9. Don’t go to the party until ____.

A. invite         B. invite to      C. invited to        D. to invite

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8. ___ you understand this rule, you will have no further difficulty.

A. Before         B. While        C. As             D. Once

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7. The thief ran ____ he was out of sight in a short while.

A. so fast that      B. too fast that       C. fast enough that     D. such fast that

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6. Roses need special care _____ they can live through winter.

A. because           B. so that       C. even if          D. as

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5. Mike acted ___ nothing had happened.

A. as           B. as though     C. as although       D. just like

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4. I will let you drive ___ you have a driving licence.

A. unless         B. except       C. on condition that     D. so that

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3. ___ I admit that the problems are difficult, I don’t agree that they cannot be solved.

A. Since         B. As          C. Even though       D. Because

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2. Practise as ___ as you can.

A. much         B. many        C. more            D. hardly

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例1、Generally speaking, _________ according to directions, the drug has no sid-effect.

A. when taking    B. when taken     C. when to take    D. when to be taken

答案為B。

[解析]  這是一個由when引導(dǎo)的時間狀語從句,原句應(yīng)為“Generally speaking ,when it is taken according…”。由于take用被動時,主從句主語一致,因此從句中的it was可以被省略,簡化為when taken…分詞短語作狀語,而選A、C時則缺乏主語。譯文:通常地說,當(dāng)這藥按照指導(dǎo)說明被服用的話是沒有副作用的。

例2、-Dad, I've finished my assignment.

-Good ,and _________ you play or watch TV ,you mustn't disturb me. 

A. whenever    B. whether     C. whatever    D. no matter

答案為B。

[解析]  no matter不能直接引導(dǎo)讓步狀語從句,應(yīng)用no matter + wh族疑問詞方可,故排除D;盡管A、C都有“無論”的意思,但只有B項whether可與or連用,表示選擇,即“無論你玩還是看電視,不許打擾我”。 

例3、The famous scientist grew up _______ he was born and in 1930 he came to Shanghai.

A. when    B. whenever    C. where    D. wherever

答案為C。

[解析]  where引導(dǎo)的是地點狀語從句。譯文:這位著名的科學(xué)家在他的出生地長大,1930年他來到上海。因為在從句中有表示時間的介詞短語in 1930,所以可以排除when和whenever; wherever引導(dǎo)讓步狀語,意思是“無論在哪里”,與句意不符。

例4、________, I have never seen anyone who's as capable as John.

A. As long as I have traveled    B. Now that I have traveled so much

C. Much as I have traveled     D. As I have traveled so much

答案為C。

[解析]  這是一個讓步狀語從句。as在引導(dǎo)讓步狀語從句時,要把形容詞或副詞放在它的前面。如果是名詞,一般不加冠詞。如:Child as he is, he has learned two thousand new words .As long

 as“只要……”引導(dǎo)條件狀語從句;Now that“既然”引導(dǎo)原因狀語從句;As“因為”引導(dǎo)原因狀語從句。譯文:雖然我走過了那么多地方,我從來沒有見過像約翰這樣有能力的人。 

例5、In such dry weather, the flowers will have to be watered if they________.

A. have survived   B. are to survive    C. would survive   D. will survive

答案為B。

[解析]  這是一個條件狀語從句,主句用了一般將來時態(tài)。在條件狀語從句中,一般不能使用將來時,但能和be to do的形式連用,所以應(yīng)填are to survive。譯文:在如此干旱的天氣里,如果你想要花成活,就得給它們澆水。

例6、The WTO cannot live up to its name _____ it does not include a country that is home to one fifth of mankind.

A.a(chǎn)s long as     B.while     C.if     D.even though

答案選C。

[解析]  從句子意思可知,是一個條件狀語從句。as long as“只要……”引導(dǎo)條件狀語從句經(jīng)常用肯定句,所以要填if。譯文:如果WTO不包括一個占人類五分之一的國家,它就名不符實了。

例7、She found her calculator  ________ she lost it.

A. where      B. when     C. in which     D. that

答案為A。

[解析]  這是一個地點狀語從句,意思是“東西是在丟的地方找到的!眎n which用于定語從句中,其前必須有先行詞。這個句子中沒有先行詞,所以不能填in which。 

例8、-I'm going to the post office.

- ________you're there, can you get me some stamps?

A. As   B. While   C. Because   D. If

答案為B。

[解析]  while引導(dǎo)時間狀語從句,意思是“當(dāng)……時”。這句話的意思是“當(dāng)你在那兒的時候,是否能給我買一些郵票?”as雖然也可以引導(dǎo)時間狀語從句,但其意思是“一邊……一邊……”;because引導(dǎo)的是原因狀語從句;if引導(dǎo)的是條件狀語從句,對方已經(jīng)說明要到郵局去,不能再作假設(shè)。

 例9、You should make it a rule to leave things ________you can find them again.

A. when     B. where     C. then     D. there

答案為B。

[解析]  where引導(dǎo)地點狀語從句。這句話的意思是“你應(yīng)該作出一個規(guī)矩,把東西放在你能再找到它們的地方!薄

例10、We'll have to finish the job, ________.

A. long it takes however        B. it takes however long

C. long however it takes        D. however long it takes

答案選D。

[解析]  however引導(dǎo)讓步狀語從句。要用陳述句的語序。

第三節(jié) 鞏固練習(xí)

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. It is ___ he has behaved so badly that he must be punished.

A. as            B. since        C. because         D. that

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5、as, though 引導(dǎo)的倒裝句

as / though引導(dǎo)的讓步從句必須把表語或狀語提前(形容詞、副詞、分詞、實義動詞提前)。句首名詞不能帶任何冠詞。

如句首是實義動詞,助動詞放在主語后。如果實義動詞有賓語和狀語,隨實義動詞一起放在主語之前。

例如:Child as /though he was, he knew what was the right thing to do.

= Though he was a small child, he knew what was the right thing to do.

Try hard as he will, he never seems able to do the work satisfactorily.

= Though he tries hard, he never seems…

雖然他盡了努力,但他的工作總做的不盡人意。

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