资源简介

一、一般现在时
概念：描述习惯性或经常性的动作、性质或状态
构成：
be 动词
动词只有is、are、am构成
I am a teacher.
He is a teacher.
We are in the same class.
实义动词
动词的原形或第三人称单数形式
I have some books on my desk.
The train leaves London at six.
标志词：频度副词、every day、on/at weekends等时间状语
I often speak English with my classmates.
He usually plays soccer, but he doesn’t play basketball.
句型：
肯定句：They usually have lunch at school.
否定句：They don’t usually have lunch at school.
一般疑问句：Do they usually have lunch at school
回答：Yes, they do./ No, they doesn’t.
3）一般现在时的构成
在一般情况下用动词原形，若主语为第三人称单数，一般在动词原形后加-s或-es。
情况 构成方法 例词
一般情况 直接加-s read→reads love→loves
以s，o，x，ch，sh结尾 加-es pass→passes box→boxes teach→teaches wash→washes
以辅音字母 + y结尾 将y变为i，再加-es carry→carries study→studies
不规则变化 have→has be→am/is/are
特殊用法：1.在时间、条件状语从句中表示将来的动作。
If it doesn’t rain tomorrow, I will go bike riding in the open air. 如果明天不下雨，我将在户外骑自行车。
I’ll tell her the good news when she comes back. 当她回来的时候，我将把这个好消息告诉她。
2.表示按计划或安排将要发生的动作，可用一般现在时表将来。但只限于start，begin，leave，go，come，arrive，return，take place等。
【课堂练习】
三单练习：
have take know .
wash study fly .
单选
---What does Mike usually on Sundays
A. do B.does C. did
The old man sometimes to the park on foot.
A. go B.going C. goes
She _____ up at six in the morning.
A. get B. gets C. getting
二、现在进行时
1．概念：表示现在（说话瞬间）正在进行、发生的动作
2. 构成：be (is/ am/ are) + doing
be 动词要与主语的人称和数保持一致
标志词：now / Look, / Listen, /at the moment/ What are you doing
主要句型
1）肯定句：主语 + be (am/are/is) + doing sth. .
e.g. I am playing the piano now. ----- What are you doing
Look! He is flying a kite. ---We are watching TV.
否定句：主语 + be (am/ is/ are) + _not_ + doing sth.
e.g. I’ am not playing the piano now.
3)一般疑问句：Be (am/is/are) + 主语 + doing sth.
肯定回答：Yes, 主语 + be. / 否定回答： No, 主语 + be not.
e.g: ---Are you doing your homework
---Yes, I am. / ---No,I’m not
现在进行时的用法
①表示现在（说话人说话时）正在发生的事情。
He is reading at the school library. 他正在图书馆看书。
②表示长期的或重复性的动作，说话时动作未必正在进行。
Mr Green is writing another novel these days. 这些日子格林先生正在写另一本书。
③已经确定或安排好的将来的活动。
I am leaving for Qingdao next week. 我打算下周去青岛。
动词-ing形式的构成：
1.直接在动词原形末尾+ing
go wash ask
going washing asking
2.以不发音的e结尾，动词去e加ing
make write use
making writing using
3.以重读闭音节结尾的动词，如果末尾只有一个辅音字母，应先双写这个字母，再加-ing
sit get run
sitting getting running
常见双写加ing的单词:
kid--kidding shop--shopping get----getting
swim---swimming cut---cutting put---putting
run---running begin-beginning plan---planning
( )1. --Look! Ann now.
--Oh, she usually after school.
A. dancing; dances B. is dancing; dance C. is dancing; dances
( )2. -- the children soccer now
--No, they aren’t.
A. Do; play B. Are; playing C. Do; playing
( )3. --Would you like for a picnic with me
--Yes, I’d like to.
A. go B. to go C. going
4. Jane goes to the gym every afternoon, but now she is her dormitory. Her room is always . (clean)
写出下列动词的现在分词。
read run
dance clean
have write
对比练习：
1. 单选：
John usually TV after supper for a short time. But now he computer games.
A. watch; plays B.watches; is playing C. watch; is playing
---Wow! Your room is so tidy.
---Thank you. I _________ it every morning.
A.clean B.cleaned C.cleaning
---Hi, Tom. What are you doing
---I’m __________ the window. It is dirty.
cleaning B.cleaned C.clean
2.情景交际
你要告诉朋友你通常周末做运动，你这么说：
____________________________________________________________.
你想知道对方正在做什么，你可以这样问他：
____________________________________________________________.
你想知道Mary 是不是经常坐地铁去上学，你可以这样问她：
___________________________________________________________？
你看到李明在操场上踢足球，你想和康康说这件事，你可以这样说：
___________________________________________________________.

展开更多......

收起↑