Unit3语法教案-高中英语人教版选择性必修第四册

1、共 案个 案Unit 3 Sea ExplorationGrammar: Revise the Infinitive 教学目标1.To learn about the basic usage of the Infinitive2.To learn to work out some confusing points in the Infinitive3.To learn to identify and analyse the Infinitive in exams.4.To learn to use the Infinitive in writing.2. 教学重难点1.Studentscang

2、rasptheusageoftheinfinitive.2.Studentscanusetheinfinitiverightlyintheexercises.三、教学过程Step 1 Lead-in 1.Some basic knowledge of nonfinite verbs and predicate verbs.定义：不能充当谓语的动词，但可以在句子中充当其他句子成分（主/宾/表/定/状/宾补）类型： 不定式 : to+V原 动名词： V-ing 现在分词：V-ing 过去分词 ：V-ed谓语动词 在句子中担任谓语的动词非谓语动词 是动词的特殊形式，在句中可以作除谓语外的所有成分判别

3、谓语动词及非谓语动词的方法She got off the bus, leaving her handbag on her seat.She got off the bus, but left her handbag on her seat.由此可见，连词在决定句子结构以及谓语动词和非谓语动词的使用中起着关键的作用。非谓语动词使用条件个句子当中，已经存在一个主句（谓语动词）,又没有连词的情况下, 还有别的动词出现时。Some basic knowledge of the Infinitive.动词不定时的形式肯定式：to do sth 否认式：not to do sth. 被动式：to be d

4、one 完成式：to have done 动词不定式的句法作用法动词不定式有副词，形容词和名词的特征，因此在句中可作主语、宾语、宾语补足语、表语定语、状语等成份。Step 2 the Usage of the Infinitive.不定式时态的用法不定式的动作与谓语动词同时发生时，或之后发生 用一般时态 1) He wanted _ (see) you. 2) I hope _(see) you again. 2. 强调不定式的动作正在进行时，用进行时态When I came in, he pretended_ （read) a book. 3. 强调不定式的动作在谓语动词之前发生时，用不定式

5、完成时 He is said _ (write) a novel last year. 4. 强调动作从过去某时开始，一直延续到现在，并可能持续下去时，用完成进行式 She is said _ (work) on the problem for many years. 不定式被动语态的用法 当不定式的逻辑主语是不定式的承受者时，用被动语态It is an honor for me to be asked to speak here .She asked _ (send) to work in Tibet .The book is said _ (translate) into English.

6、 Step 3 不定时的句法功能不定式做主语时，可以直接放在谓语动词之前Not to get there in time is your fault.注：常用it做形式主语，将to do放在位于之后，使句子保持平衡。句型1：It + 谓语 + to do句型2：Its + n. + to do句型3：It is adj. for/of sb. to do sth作表语时 主语 + be + to do sth 主语多为 duty / wish / hope / idea / plan / ambition/ dream / work / job 等 名词 My ambition is to b

7、e a singer. 作宾语时 动词+ to do sth. 动词疑问词+to do主语+谓语+it+ adj./n. +to dohe teacher is coming, lets stop _ (talk).She tried _ (read), but couldnt make her forget her trouble.He forgot even _ (write) to me, so he wrote another one.I remember _ (bring) the book to you last week.I regret _ (tell) that we can

8、t take your advice.作宾语补足语 作宾补-对宾语进行补充说明 动词 + 宾语（sb./sth.) + to do sth.I saw someone come in.I saw someone coming in.动词+宾语+不带to的不定式作定语 不定式做定语时一般修饰将要去做的事I worked so late in the office last night that I hardly had time to catch the last bus.名词是抽象名词名词前有only，last，next，序数词(first, second,.)或形容词最高级形容时 She i

9、s the last to leave the room.不定式为不及物动词时，须加介词He is looking for a room _(live).作状语 原因状语: 主语 + be + adj.(表情感) + to do sth. (happy/ glad angry / sorry / sad /afraid 目的状语 The soldier ran into the room to save the girl. 结果状语 too + adj./adv. +to do sth.adj./adv. enough to do sth.Step 4 Exercise 1. Robert i

10、s said _ (study) abroad, but I dont know what country he studied in. 2. The purpose of new technologies is to make life easier and_ (make) it more difficult. 3. Ive worked with children before, so I know what _ (expect) in my new job. 4. Having a trip abroad is certainly good for the old couple, but

11、 it remains _ (see) whether they will enjoy it.5. It is said in Australia there is more land than the government knows _. (what, do with)6. The mother didnt know who _ (blame) for the broken glass as it happened while she was out. 7. Paul doesnt have to be made _ (learn). He always works hard. 8. We agreed _ (meet) here but so far she hasnt turned up yet. 9. The boy wanted to ride his bicycle in the street, but his mother told him _.Step 5 Summary什么是非谓语动词：不能充当谓语的动词，但可以在句子中充当其他句子成分（主/宾/表/定/状/宾补）谓语动词 在句子中担任谓语的动词 肯定式：to do sth 否认式：not to do sth. 被