初中英语简易实用语法导学练11：现在进行时
展开初中英语简易实用语法导学练11：现在进行时
- 现在进行时的用法和构成
基本用法 现在进行时表示现在正在进行的动作。
构成 “be (am/is/are)+现在分词”构成
用be动词的正确形式填空：
1) I _______ speaking.
2) You _______ studying English.
3) The baby _______ crying.
- 其它用法
1) 表示现阶段正在进行的动作，即使说话时不在进行。eg.
They are building a bridge.（他们在造一座桥。―即使此刻工人在休息也可以这样说）
2) 表示最近按计划或安排要进行的动作。eg.
We are leaving on Friday.(我们星期五动身。)
Are you going anywhere tomorrow?（明天你要到哪里去吗？）
此用法仅限于少数动词，如go, come, leave, start, arrive等。
3) wonder, hope, think, want等表示心理的动词用于进行时可表示婉转的口气。
4) 有时代替一般现在时，和always, constantly, continually, forever等连用，表示一个经常性的动作或状态，但要么带有厌烦、觉得不合理等感情色彩，要么表示情况的暂时性。
- 动词加-ing的方法：
情 况 | 加 法 | 例 词 |
一般情况 | 加ing | call— read— |
以不发音的e结尾的词 | 去掉e再加ing | live— write— |
以ie结尾的词 | 把ie变为y再加ing | lie— die— tie— |
以单短元音结尾的重读闭音节，且最后只有一个辅音字母的词 | 先双写末尾的辅音字母，再加-ing | stop— begin— listen— |
- 过去进行时的用法和构成
基本用法：
过去进行时表示过去某一时刻或某段时间内正在进行的动作。过去进行时常跟下列时间状语连用：this time yesterday, at that moment, when引导的状语从句等。
构成 过去进行时的谓语动词形式： was/were+现在分词
1) I _______ reading this time yesterday.
2) We __________ reading this time yesterday.
进行式特别喜欢和when, while, as等引导的时间状语从句连用。
1) We were having supper when the phone rang.
2) When I saw him he was decorating his room.
3) He was cleaning his car while I was cooking.
- 疑问句与否定句
请先回顾把一个句子变成疑问句和否定句的方法，再把以下的句子分别改成疑问句与否定句：
1) The birds are flying in the sky.
___________________________________ / ______________________________________
2) It was raining at 6 o’clock this morning.
___________________________________ / ______________________________________
- 没有进行式的动词
1) 不能持续的动作：accept, refuse, admit,permit.
部分短暂动词进行式表示动作即将完成。
He is dying. ______________________
2) 表示状态的动词：know，realize，agree, think, remember, cost, love, belong, seem, sound.
【当堂训练】
- 写出下列动词的现在分词形式。
help_______ come_______ swim_______ eat _______ find _______
sit _______ tie_______ make _______ play_______ catch_______
listen_______ begin _______ sleep_______ see_______ have _______
- 用括号内所给词的适当形式填空。
1) Look ! The boy _____________ (read) books.
2) I _______ to the cinema. I _________ there every Sunday. (go)
3) --_______ he ___________ (clean) the blackboard?
— No, he isn’t.
4) Listen! They ___________ (sing) in the muisc room.
5) Ladies and gentlemen, please fasten your seat belts. The plane _______________(马上就要起飞了，take).
6) I __________ (telephone) a friend when Bob __________ (come) in.
7) Miss Guo______ (teach) us Chinese this term. She______ (be) a very good teacher. She often______ (talk) with us after class. Many of us like ________ (talk) with her. Now, she________ (talk) with Lily.
- 把以下句子改成疑问句和否定句：
1) The boy is playing basketball.
_______________________________; ______________________________________
2) I was walking in the street when someone called me.
_______________________________; ______________________________________
【课后巩固提升】
- 写出以下单词的第三人称单数、过去式及现在分词形式。
study ________；________；________ write ________；________；________
clean _______；________；________ watch_______；________；________
dance _______；________；________ lie _______；________；________
permit _______；________；________ enjoy_______；________；________
- 用括号内动词的适当形式填空。
1) When I ___________ (enter) the classroom, they ___________ (talk).
2) Listen! Who_____________(read) English? Han Meimei is. She often________(read) English in the evening.
3) We __________ (test) the new machine when the electricity __________ (go) off.
4) As she _________ (read) the newspaper, Granny ________ (fall) asleep.
5) –Mary, supper is ready?
--I ____________(就来，come)
- 改错题
1) I was knowing the answer.
2) While we talked, the teacher came in.
3) He can't be wait for us now.
4) Jane is doing some cleaning this time yesterday.
5) Mary is making a dress when she cut her finger.
6) Does John be reading a book now?
