文件(完整版)一般现在时和一般过去时a.docx

一般现在时讲解及练习

1、定义与讲解

一般现在时：表示经常性的事情，经常性的动作或一般性事实。

时间状语：often经常，usually通常，always总是，every+名词每个，sometimes有时，onceaweek,onSundays,if的从句at…在几点钟

2.表示客观真理，科学原理，自然现象，等客观事实或格言，谚语等。

Thesunrisesintheeastandsetsinthewesteveryday.

ThemanwhohasneverbeentotheGreatWallisnotarealman.TomorrowisTuesday.

只有在第三人称单数用动词的“三单变化”，其他用动词的原形。三单变化：

直接在动词词尾加-s.

ask---asks work---works get---gets stay---stays

以字母s,x,ch,sh或o结尾的动词，在词尾直接加-es.watch---watches wish---wishes fix---fixes pass---passes

以“辅音字母加-y”结尾的动词，要先变y为i再加-es.

try---tries study---studiescry---cries fly---flies play—plays

2.不规则变化：be----is are have----has do---does go---goes

三、一般现在时的句子转换：（1）当句子中有be动词或情态动词时，则把be动词或情态动词(can,could等等)提到主语的前面变成疑问句;在be动词或情态动词后面加not变成否定句陈述句Sheisastudent.疑问句Issheastudent?否定句Sheisnotastudent.

陈述句：Icanswim.疑问句→Canyouswim否定句→Icannotswim.（2）当句子中即没有be动词，也没有情态动词时，则在主语前加助动词do(you,以及

复数),does（单数she,he,it）变成问句；在主语后谓语动词前加助动词don’t（I,

you,以及复数),doesn’t（单数she,he,it）变成否定句，助动词后的动词要变成动词原形。

陈述句：Wegetupat7:00everymorning.

疑问句Doyougetupat7:00everymorning?

否定句→Wedon’tgetupat7:00everymorning.

陈述句：Shehasalittlebrother.

疑问句→Doesshehavealittlebrother?

否定句Shedoesn’thavealittlebrother.

（一）．用动词的适当形式填空

She (go)toschoolatseveno’clock.

Heusually upat17:00.(get)

She (live)inBeijing.

Amy (be)herejustnow.

(be)thereafly onthetablejustnow?

Myfather (watch)TVeveryevening.

Myfather (make)toysthesedays.

? Amy (read)Englisheveryday

ChenJiesometimes (go)totheparkwithhersister.

（二）.选择填空

1．Iwant homeworknow.A.doing B.todo C.todomy D.domy2．Itstime .

A.gotoschool B.playgames C.togohome D.todomyhomeworks3． goandhelpher. A.Letsme B.Letsus C.Lets D.Letsto

Dotheyhaveanewcar?Yes, .

A.theyare B.theyhave C.theydont D.theydo

Heoften supperat6:00intheevening.

have B.has c.ishaving D.iseating

We anyChinese