[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，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＋than＋B”，表示“A比B大(長、高、寬等)多少倍”。

(2)“A＋倍數(shù)＋as＋形容詞或副詞的原級＋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)謂語動詞的語氣，在句中要重讀，譯為“真的”“的確”“確實”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)烈的請求，而不是命令，有時它可以使邀請對方的心意顯得更加客氣、熱情、友好，而且親切，此時的 do可譯為“千萬，務(wù)必”等。

Please do sit down. 務(wù)必請坐下。

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，表示直接的或為人所不知的原因。

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. 因為這對你有好處。

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)實的鞋子，因為我們要走不少路。

It rained last night, for the ground is wet.
昨晚下雨了，因為地面是濕的。

[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 did是 what主語從句中的謂語動詞；第二個 does強(qiáng)調(diào)謂語 do good to，故選B。

答案：B