英语时态汇总
一般现在时
【定义】
一般现在时表示现在经常反复发生的动作、存在的状态或习惯性的动作。即描述我们日常生活中的衣食住行等活动。
【用法】
(1) 在实际应用中，一般现在时常与以下时间状语联用：
always, usually, often, sometimes, seldom, never,every week (day, year, month, once a week, on Sundays ……
例句：He usually plays football on Sundays.
(2)没有时间状语，可以分以下四种类型：
这一类型由be动词+名词、形容词、副词、代词、数词或介词短语等一起构成谓语，表示主语的个性、特征或状态。这时I 用am。you,we,they复数用are 。he, she ，it ，单数用is如：
①I am a student.(主语+be动词+名词)
②They are hungry.（主语+be动词+形容词）
③He is out.(主语+be动词+副词)
④That pen is mine.(主语+be动词+代词)
do型由行为动词充当谓语，表示经常性或习惯性的动作，
其构成：主语是: I,you,we.they,复数
肯定句：I,you,we.they,复数+动词原形+其它
否定句：I,you,we.they,复数+don’t+动词原形+其它
一般疑问句：Do +主语+动词原形+其它?
肯定回答：Yes, 主语+do. 否定回答：No, 主语+ don’t.
主语是: he, she，it ，单数
肯定句：He, she，it ，单数+动词第三人称单数形式+其它
否定句：He, she，it ，单数+doesn’t +动词原形+其它
一般疑问句：Does+ he, she，it ，单数+动词原形+其它?
肯定回答：Yes, 主语+does. 否定回答：No, 主语+ doesn’t.
there be型句子表示“某地存在…”，其构成为，表示客
观事实。用法遵循，即主语是单数或并列主语中的第一个主语是单数，则用there is；主语是复数或并列主语中的第一个主语是复数，则用there are。如：
（1）There is an eraser on the teacher's desk.(主语an eraser是单数) （2）There is an orange，five apples and eight bananas in the bag.(并列主语中的第一个主语an orange是单数)
情态动词型句子的构成为，情态动词和动词原形一起构成谓语，表示说话人对所叙述的动作或状态的看法。如：
①He can speak a little English.(can+speak)
②May I have a book, please?(may+have)
【练习】
一、用所给词的适当形式填空。（Be动词）
1. Jim __________(be) a hard-working student at school.
2. __________(be) Tom and Sam in the same class?
3. Your school life __________(be) very interesting.
4. There __________(be) a pen, two rulers and some books on the desk.
5. The boys __________(be) very friendly to me.
6. Maria __________(be not) from the U.S.A.
7. __________(be) there any trees and a pool in the yard?
8. I want to __________(be) a teacher.
9. Mr. Wang can’t __________(be) at home, because the lights are off.
10. Don’t __________(be) late for school again.
二、用所给词的适当形式填空。（情态动词）
1. My mom can __________(cook) food well.
2. Must she __________(stay) at home now?
3. What can the boy __________(do) for his parents?
4. Tom can’t __________(sing) an English song.
5. He may __________(perform) ballet at Kangkang’s birthday party.
6. She should __________(help) her parents do some housework.
三、用所给词的适当形式填空。（实义动词）
1. Tom often __________(take) a talk after supper.
2. Tom and I usually __________(go) to school by bike.
3. Does Lin T ao __________(like) reading storybooks?
4. What classes do you __________(have) today?
5. How often does the girl __________(watch) TV?
6. Where do they __________(live) now?
7. Every year many people __________(lose) their lives in traffic accidents.
8. Sam doesn’t __________(get) up early in the morning.
9. Each of them __________(have) a nice schoolbag.
10. They each __________(sleep) late at night.
四、句型转换。（Be动词）
1. She is in a blue dress.（变否定句）
