1. Everyone knows that _______ is dangerous to play with fire ， but
_______ is difficult is to prevent children from playing with fire. A.
it， it B. what ， what C. it ， what D. what ， it 「陷阱」很容易誤選
B ，認(rèn)為兩空均考查形式主語。

    「分析」最佳答案是C ，第一空填形式主語，真正的主語是其后的不定式 to
play with fire. 第二空填 what ，what is difficult 是主語從句，注意 what
is difficult后的謂語動詞 is.請做以下類似試題：（1 ） I know ______ is
important to know my own limitations， but _______ is difficult is to
help others to know their own limitations. A. it， it B. what ， what
C. it ， what D. what ， it （2 ） Yes， ______ is difficult to find a
job nowadays， but _____ is more difficult is try to find such a job with
a high salary but little things to do. A. it， it B. what ， what C. it
，what D. what ， it

    2. I dislike _______ when others laugh at me in public or think poorly
of me behind. A. that B. those C. it D. them「陷阱」幾個干擾項均有可能
誤選。

    「分析」最佳答案是C ，因為在通常情況下，like是及物動詞，其后應(yīng)有賓
語（句中 it 即為其賓語）。句中的 when 從句不是賓語從句，而是時間狀語從
句，其中的 when 的意思是“當(dāng)……的時候”。其實，也有的詞典將 I don't like
it when （if）…作為一個句型來處理。能這樣用的動詞不多，主要的有enjoy ，
like， dislike， love ， hate ， prefer ， appreciate 等表示喜好的動詞。

    She won't like it if you arrive late. 她不喜歡你遲到。

    He hates it when people use his bike. 他討厭別人用他的自行車。

    請做以下類似試題（答案均選 it ）：（1 ） I hate _______ if people
say such things in public. A. that B. those C. it D. them （2 ） I'd prefer
_______ if I didn't have to get up early on Sundays. A. that B. such C.
it D. which （3 ） I would appreciate _______ very much if you could give
me some suggestions. A. this B. that C. it D. you

    3. I've no idea. I just pretended nobody was at home， so I didn't
ask who _______ was. A. he B. that C. she D. it 「陷阱」容易誤選A 或C.
「分析」最佳答案是D.it用以指身份不明的人。若指身份明確的人，則不宜用it.
比較：（1 ） Mr Smith is at the door. _______ wants to see you. （2 ）

    Someone is at the door. ________ must be Mr Smith. A. He B. It C.
This D. That第（1 ）題選A ，因為來者身份明確；第（2 ）選B ，因為來者身
份不明確。

    4. "Excuse me ， I want to have my watch fixed， but I can't find
a repair shop." "I know ________ nearby. Come on， I'll show you." A.
one B. it C. some D. that 「陷阱」容易誤選B.「分析」最佳答案是A.it和 one
的區(qū)別可簡單地概括為：it = the +名詞，one = a + 名詞。如：I haven't got
any pens， and I want to borrow one.我沒有鋼筆，我想借一支。（one = a
pen ）

    I have two pens ， and I can lend one to you. 我有兩本支鋼筆，我可
以借一支。（one = a pen ）

    I have a pen， and I can lend it to you.我有一本鋼筆，我可以把它借
給你。（it = the pen）

    在上面一題中，one 相當(dāng)于 one相當(dāng)于 a repair shop. 請做下面一題（答
案選A ）：There is only one English-Chinese dictionary in that book-shop.
I wonder if you still want to buy _______. A. it B. one C. another D.
any

    5. Will you see to _______ that my children are taken good care of
while I am away ？

    A. it B. me C. yourself D. them 「陷阱」幾個干擾項均有可能誤選。

    「分析」最佳答案是A.it為形式賓語，真正的賓語是空格后that引導(dǎo)的賓語
從句。see to意為“負(fù)責(zé)”、“注意”，其中的 to 為介詞，不宜直接跟that引
導(dǎo)的賓語從句，遇此情況可借助代詞 it.請做下面兩題，答案也是選 it ：（1 ）

    I'll see to _______ that all these letters will be sent to the post
before twelve. A. it B. me C. which D. them （2 ） Will you see to _______
that the luggage is brought back as soon as possible？

    A. me B. yourself C. it D. them 類似以上 see to 用法的短語還有 depend
on， answer for 等。如下面兩題答案也選 it ：（1 ） You may depend on _______
that he will turn up in time. A. it B. me C. which D. them（2 ） I can't
answer for ________ that the boy is honest. A. it B. me C. which D. them