[即境活用1]　

(1)He didn't make ______ clear when and where the meeting would be held.

A．this　　　B．that ??C．it D．these

解析：it做形式賓語，真正賓語為 when and where從句。

答案：C

(2)I'd appreciate ______ if you would like to teach me how to use the computer.

A．that B．it ?C．this D．you

解析：it做形式賓語，代替 if從句。

答案：B

2．But when I tried to step forward, I found I was carried twice as far as on the earth and fell over.而當(dāng)我試著向前邁步時(shí)，我發(fā)覺我被送出很遠(yuǎn)，步子的跨度竟是在地球上的兩倍，因而我摔倒了。

倍數(shù)的表達(dá)方式有：

(1)“A＋倍數(shù)＋形容詞或副詞的比較級(jí)＋than＋B”，表示“A比B大(長(zhǎng)、高、寬等)多少倍”。

(2)“A＋倍數(shù)＋as＋形容詞或副詞的原級(jí)＋as＋B”，表示“A是B的多少倍”。

(3)“A＋倍數(shù)＋the size/height/length/width, etc.＋of＋B”，表示“A是B的多少倍”。

(4)“A＋倍數(shù)＋what?從句”，表示“A是……的多少倍”。

①Asia is four times as large as Europe.
＝The size of Asia is four times that of Europe.
＝Asia is four times the size of Europe.
＝Asia is three times larger than Europe.
亞洲是歐洲的四倍大(比歐洲大三倍)。

②Our total income of 1994 was double that of 1992.
我們1994年的總收入是1992年的兩倍。

③The production now is three times what it was ten years ago.現(xiàn)在的產(chǎn)量是十年前的三倍。

[即境活用2]

(1)Though it's a challenging job, he did it ______ it took me.

A．one?third a time B．one?third time
C．the one?third time D．one?third the time

解析：考查倍數(shù)比較的句型，即“倍數(shù)＋the＋n.”結(jié)構(gòu)。

答案：D

(2)What a table! I've never seen such a thing before. It is ______ it is long.

A．half not as wide as B．wide not as half as
C．not half as wide as D．a(chǎn)s wide as not half

解析：考查倍數(shù)比較 half＋as...as。

答案：C

3．...walking does need a bit of practice now that gravity has changed. ……既然重力改變了，行走的確需要一些練習(xí)

(1)句中 does need是一種強(qiáng)調(diào)句式。

①在一般句型中，do (does, did)常用來強(qiáng)調(diào)謂語動(dòng)詞的語氣，在句中要重讀，譯為“真的”“的確”“確實(shí)”等。

You do look nice today. 你今天看起來真的很漂亮。

Jack said he would come and he did come.杰克說他要來，他果真來了。

②在祈使句中，do表示強(qiáng)烈的請(qǐng)求，而不是命令，有時(shí)它可以使邀請(qǐng)對(duì)方的心意顯得更加客氣、熱情、友好，而且親切，此時(shí)的 do可譯為“千萬，務(wù)必”等。

Please do sit down. 務(wù)必請(qǐng)坐下。

Do be careful next time. 下次千萬要小心。

(2)now that 在句中引導(dǎo)原因狀語從句，相當(dāng)于 since，意為“既然，由于”，that 可省略。

Now that you have finished your work, you‘d better have a rest. 既然工作已經(jīng)做完了，你最好休息一下。

辨析：now that/because/since/as/for

now that 說明已經(jīng)成為事實(shí)的原因，常譯為“既然”。

because 語氣最強(qiáng)，回答的是用 why提問的問句，表示直接的或?yàn)槿怂恢脑颉?/p>

since與 as語氣較 because 弱，表示顯而易見或已為人所知的原因。since 側(cè)重主句，as主從并重，語氣比 since 弱。

for是連詞，用來補(bǔ)充說明理由或提供一種解釋，不一定是真正的原因，不能放在主句前面。

—Why did you do this? 你為什么這么做？
—Because it is good for you. 因?yàn)檫@對(duì)你有好處。

Since you have known it, I won‘t repeat it.
既然你已經(jīng)知道了，我就不重復(fù)了。

Wear strong shoes as we shall do a lot of walking.
穿上結(jié)實(shí)的鞋子，因?yàn)槲覀円卟簧俾贰?/p>

It rained last night, for the ground is wet.
昨晚下雨了，因?yàn)榈孛媸菨竦摹?/p>

[即境活用3]　

(1)In my opinion, what Fei Junlong and Nie Haisheng ______ good to our country's international positions.

A．did do does B．did does do
C．does did do D．do do did

解析：第一個(gè) did是 what主語從句中的謂語動(dòng)詞；第二個(gè) does強(qiáng)調(diào)謂語 do good to，故選B。

答案：B