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  • 2016年必考英语语法——不定式否定式的用法的说明

    所属专题:2015年中考英语  来源:互联网    要点:初三英语  
    编辑点评: 距2016年中考越来越近,初三的孩?#29992;且步?#20837;紧张的备考阶段。中考中英语占得比重很大,要想考好英语,英语语法一定得牢固掌握。小编特意为大家准备了2016年必考的英语语法,初三的孩?#29992;?#19968;定要抽出时间看看背背。


    1. 不定式的否定式的构成

    通常是将否定词not或never置于不定式之前,即构成not to do 或never to do 的形式,注意not和never一定要放在不定式符号to的前面,而不是其后面:

    The doctor advised me not to smoke. 医生劝我不要抽烟。

    It’s politically short-sighted not to do so. 不这样做在政治上是短视的。

    He strongly advised me not to do so. 他使劲劝我别这样做。

    Take care not to break it. 小心别把它打破了。

    Be careful not to break anything. 当心别打破什么了。

    She had sense enough not to say anything about it. 她有足够的头脑不提此事。

    Father warned me never to drive after drinking. 父亲警告我不要酒后开车。

    Visitors are requested not to touch the exhibits. 参观的人请勿触摸展品。


    She pretended not to have seen him. 她假装没看见他。

    It is nice not to be dependent on others. 不依靠别人是好的。

    You were silly not to have locked your car. 你没锁车太傻了。

    2. so as to do sth 和in order to do sth 的否定式


    Study hard so as not to fail the exam. 努力学习,以免考试不及格。

    He came in quietly in order not to wake his wife. 他轻轻进来,以免把他妻子吵醒。

    Go in quietly so as not to wake the baby. 进去时不要出声,以免把宝宝吵醒。

    Take every precaution so as not to catch cold.采取一切预?#26469;?#26045;以免感冒。

    We keep the window shut in order not to let the flies in. 我们把窗子关着以免苍蝇进?#30784;?/p>

    They hid themselves in the cave in order not to be seen by the enemy. 他们躲在洞穴里以免被敌人发现。

    Please reply at once in order not to lose this opportunity of a lower price. 请立即回复,以免失去这次低价的机会。

    They must have worn gloves in order not to leave any fingerprints. 他们一定戴上了手套,以防留下指纹。





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