整理了2018年成考專升本英語動(dòng)詞，想要了解更多有關(guān)成考專升本的知識(shí)詳情可以上樂貞教育網(wǎng)：

動(dòng)詞不定式的用法：不定式結(jié)構(gòu)作主語

1、不定式前置

1) Derive [A] mineral resources from [B] sedimentary rock [C] is a [D] major modern industrial activity.

2) in the matriculation for postgraduate in a short time is realy a hard nut.

[A] To make high scores[B] To make low goal[C] To the high scores[D] Make the low goals

2、上述形式一般情況不多見，作為考試的規(guī)范英語，如果不定式較長，顯得頭重腳輕,則可由代詞“it”作形式主語(形式主語“it”不能由“that”或“this”等其他代詞代替)，而將不定式放到后面

It is really a hard nut to get high scores in the matriculation for postgraduate in a short time.

3) John admitted that it,#39;s always difficult.

[A] for him being on time[B] being on time for him

[C] for him to be on time[D] on time for him

4) It is difficult for me [A] to be concentrating [B] while someone [C] is using [D] a vacuum cleaner.

3、不定式后置的情況不僅限于動(dòng)詞是系動(dòng)詞，也適用于其他動(dòng)詞

It took us a great deal of efforts to finish that task.

It made him extremely happy to get contact with his family in Taiwan since they separated more than 40 years ago.

4、不定式結(jié)構(gòu)所表示的動(dòng)作是誰做的，即不定式的邏輯主語，通常可以在特定的上下文中能看出，也可以通過帶“for +名詞短語”辨出

It is quite important for us to read good books during the period of general review(總復(fù)習(xí))。

It is not difficult for those who study maths well to pass the exam.

5、在某些形容詞(如careless,clever,considerate,foolish,good,impolite,kind,naughty,nice,silly,stupid等)作表語時(shí)，不定式后可以加of來引導(dǎo)出其邏輯主語

It is very kind of you to help me./It is stupid of him to do such a silly thing.

間或也可用for + there to be 表示(而且there后面的不定式只能是to be)。

It,#39;s a great pity for there to be much trouble in the company.

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