[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做形式宾语，真正宾语为 when and where从句。

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做形式宾语，代替 if从句。

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.而当我试着向前迈步时，我发觉我被送出很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。

倍数的表达方式有：

(1)“A＋倍数＋形容词或副词的比较级＋than＋B”，表示“A比B大(长、高、宽等)多少倍”。

(2)“A＋倍数＋as＋形容词或副词的原级＋as＋B”，表示“A是B的多少倍”。

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

(4)“A＋倍数＋what¬从句”，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.
亚洲是欧洲的四倍大(比欧洲大三倍)。

②Our total income of 1994 was double that of 1992.
我们1994年的总收入是1992年的两倍。

③The production now is three times what it was ten years ago.现在的产量是十年前的三倍。

[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：考查倍数比较的句型，即“倍数＋the＋n.”结构。

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．as wide as not half

解析：考查倍数比较 half＋as...as。

答案：C

3．...walking does need a bit of practice now that gravity has changed. ……既然重力改变了，行走的确需要一些练习

(1)句中 does need是一种强调句式。

①在一般句型中，do (does, did)常用来强调谓语动词的语气，在句中要重读，译为“真的”“的确”“确实”等。

You do look nice today. 你今天看起来真的很漂亮。

Jack said he would come and he did come.杰克说他要来，他果真来了。

②在祈使句中，do表示强烈的请求，而不是命令，有时它可以使邀请对方的心意显得更加客气、热情、友好，而且亲切，此时的 do可译为“千万，务必”等。

Please do sit down. 务必请坐下。

Do be careful next time. 下次千万要小心。

(2)now that 在句中引导原因状语从句，相当于 since，意为“既然，由于”，that 可省略。

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

辨析：now that/because/since/as/for

now that 说明已经成为事实的原因，常译为“既然”。

because 语气最强，回答的是用 why提问的问句，表示直接的或为人所不知的原因。

since与 as语气较 because 弱，表示显而易见或已为人所知的原因。since 侧重主句，as主从并重，语气比 since 弱。

for是连词，用来补充说明理由或提供一种解释，不一定是真正的原因，不能放在主句前面。

—Why did you do this? 你为什么这么做？
—Because it is good for you. 因为这对你有好处。

Since you have known it, I won‘t repeat it.
既然你已经知道了，我就不重复了。

Wear strong shoes as we shall do a lot of walking.
穿上结实的鞋子，因为我们要走不少路。

It rained last night, for the ground is wet.
昨晚下雨了，因为地面是湿的。

[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：第一个 did是 what主语从句中的谓语动词；第二个 does强调谓语 do good to，故选B。

答案：B