Unit 5 Learning from nature 语法非谓语动词作主语宾语 课件(共14张PPT)外研版(2019)选择性必修第三册

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Unit 5 Learning from nature 语法非谓语动词作主语宾语 课件(共14张PPT)外研版(2019)选择性必修第三册

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(共14张PPT)
Unit5 Learning from nature语法讲练
非限定动词作主语、宾语和表语
目录
1)核心概念:什么是非限定动词
2)用法 1:作主语(to do /doing)
3)用法 2:作宾语(固定搭配 + 辨析)
4)用法 3:作表语(to do /doing/done)
5)高考高频易错点总结
6)实战演练 + 答案
一、核心概念
非限定动词(非谓语动词)
定义:不作句子谓语,可充当主语、宾语、表语等成分的动词形式
高中三大形式
不定式 to do:表将来、具体、目的
动名词 doing:表抽象、习惯、主动
过去分词 done:表被动、完成、感受
关键规则:不受主语人称和单复数限制
二、作主语
1. 动名词 doing 作主语
表抽象、习惯性、经常性动作,且谓语动词用单数
例句:Swimming is good for health.
固定句型:It is no use/good doing…
2. 不定式 to do 作主语
表具体、一次性、将来动作
常用 It 作形式主语,避免头重脚轻
例句:It is important to learn a foreign language.
形式 核心含义 例句
doing 抽象、习惯 Walking is good exercise.
to do 具体、将来 To walk this evening is a good idea.
三、作宾语
1. 只接 doing 作宾语(高考必背)
enjoy /finish/practice /mind/avoid /suggest/keep /risk
例句:I enjoy listening to music.
2. 只接 to do 作宾语
want /hope/decide /refuse/promise /pretend/manage
例句:She decided to leave.
3. 接 to do /doing 含义不同
stop / remember / forget / regret / try / mean
四、作表语
(跟在系动词后:be /seem/look /become)
doing:表性质、令人……,主语多为物
例句:The film is interesting.
to do:表计划、将来、目的
例句:My dream is to become a doctor.
done:表感受、被动,主语多为人
例句:I am interested in English.
形式 含义 主语 例句
to do 计划、具体 人 / 物 My job is to clean.
doing 令人…… 的 物 The story is moving.
done 感到…… 的 人 We are moved.
五、高考高频易错总结
1、非谓语作主语,谓语一定用单数
2、形式主语 It 只替代 to do /doing
3、doing(令人…) vs done(感到…)
4.只接 doing 作宾语的动词需精准记忆
六、实战演练
1.______ (read) novels is my hobby.
2.I want ______ (go) abroad.
3.The news is ______ (surprise).
4.She is ______ (surprise) at the result.
Reading to go surprising surprised
[课后小练]
1.________ (walk) is a good form of exercise.
答案:Walking
讲解:动名词作主语,表示经常性、抽象的动作。
2.It is necessary ________ (master) some basic skills.
答案:to master
讲解:It 作形式主语,真正主语用不定式 to do。
3.He enjoys ________ (read) novels in his free time.
答案:reading
讲解:enjoy 后只能接 doing 作宾语。
4.She decided ________ (study) abroad next year.
答案:to study
讲解:decide 后只能接 to do 作宾语。
5.My hobby is ________ (paint).
答案:painting
讲解:doing 作表语,表示爱好、经常性内容。
6.His dream is ________ (become) a scientist.
答案:to become
讲解:to do 作表语,表示将来、愿望、目标。
7.Remember ________ (lock) the door before you leave.
答案:to lock
讲解:remember to do 记得要去做某事(未做)。
8.I remember ________ (meet) him somewhere before.
答案:meeting
讲解:remember doing 记得做过某事(已做)。
9.I avoid ________ (make) the same mistake again.
答案:making
讲解:avoid 后只能接 doing 作宾语。
Thanks for your listening!

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