一般现在时复习资料.doc

一般现在时
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每个（day，morning等）, sometimes有时,at…,在几点钟
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:1多数在动词后+s 如：play- plays like-lkes
(1)直接在动词词尾加-s
ask-asks， work-works ，get-gets ，stay-stays
(2)以字母s、x、ch, sh或0结尾的动词,在诃尾直接加-es。
watch--watches wish-wishes fix--fixes
do—does go--goes pass--passes
3)以“辅音字母加-y结尾的动词,要先变y为i再加-es
try-tries study-studies cry-cries fly-flies
2不规则变化:
be-- is are have –has
二、一般现在时用法
1.表示经常性,习惯性,永久性的动作或存在的状态，通常与副词 sometimes, often, usually, always, every day (year, month), once (twice, three times)a day等时间状语连用。
They usually go to school by bike.
I take the medicine three times a day.
She helps her mother once a week.
There are 50 students in my class.
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
The sun rises in the east and sets in the west every day
The man who has never been to the great wall s not a real man.(不到长城非好汉)
Tomorrow is Tuesday.
三、一般现在时的句子转换
(1)当句子中有be（is、am、are）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，例:①陈述句: She is a student
疑问句→ Is she a student?
否定句→ She is not a student
②陈述句: I can swim
疑问句→ Can you swim
否定句→ I can not swin
(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)变成句;在主语后谓语动词前加助动词don’t(I,you,以及复数) doesn(单数she,he,it)变成否定句,助动词后的动词要变成动词原形。例:①陈述句: We get up at 7:00 every morning.
疑问句→ Do you get up at7:00 every morning?
否定句→ We don't get up at700 every morning.
②陈述句: She has a little brother.
疑问句→ Does she have a little brother?
否定句→ She doesnt have a little brother
(一).用动词的适当形式填空
(一).用动词的适当形式填空
1. She (go) to school at seven o'clock
2. It's 6 o'clock. They are ________(eat)supper.
3. He usually (get) up at 17: 00.
4. She (live)in Beijing.
5. (be there a fly on the table just now?
6. My father (watch) TV every evening
7.My father (make) toys these days
8.Amy (read)English every day
9. Chen Jie sometimes (go) to the park with her sister
(二)·选择填空