第七讲 一般现在时
【学习目标】掌握一般现在时的时间标志语、句型结构和用法。
【知识要点】
一、一般现在时使用语境:
1.经常发生或反复发生的动作或是习惯。
e.g He gets up at six every day.
Do you often wash your hair
2.永恒的真理。
e.g The sun rises in the east.
It snows in winter.
3.条件状语从句中从句部分一般现在时表将来。
If it doesn’t rain tomorrow ,I shall fly a kite in the open air .
Unless she leaves here,she will be fined
二、一般现在时的标志:always. usually. often. sometimes. every day. every week…
He always goes to bed at ten at night.
She often gets up late on Sundays.
三、谓语构成:
1. 当主语是第三人称单数时(注:判断主语是第三人称单数简单方法“除I, we, you,they 以外,其他都是第三人称,然后判断单复数”。),谓语动词要加-s或-es
He rides a bike to go to school from Monday to Friday.
动词的单三形式变化规则:
一般情况 加 -s 清辅音后读/s/
浊辅音、元音后读/z/ swim-swims;help-helps;like- likes
以辅音字母+o结尾 加 -es 读/z/ goes,does
以s,sh,ch,x等结尾 加 -es 读/iz/ watches
以辅音字母+y结尾 变y 为i再加es 读/z/ study-studies
不规则变化have和be动词 变have 为 has
变be为am,is, are have-has
be-am,is,are
2. 当主语是其他人称时,谓语动词要用原形。
Usually, they have rice and vegetables for supper.
四、句型结构:
肯定式 否定式 疑问式 回答
I work I don’t work. Do you work Yes, I do. / No, I don’t.
You like singing. You don’t like singing. Do you like singing Yes, I do. / No, I don’t.
We often go to the zoo. We don’t often go to the zoo. Do you often go to the zoo Yes, we do. / No, we don’t.
They want to have supper. They don’t want to have supper. Do they want to havesupper Yes, they do. / No, theydon’t.
He (She, It) eats a lot. He (She, It) doesn’t eat a lot. Does he (she, it) eat alot Yes, he (she, it) does. /No, he (she, it) doesn’t.
【频度副词及频度副词短语】
一、频度副词是用来表示动作频率的词, 包括: often, usually, always, sometimes, seldom, never等。例如:
1. He is always late for school. 他上学总是迟到。
2. I never play computer games. 我从不玩电脑游戏。
3. You should often wash your hands. 你应该经常洗手。
二、频度副词短语包括: on Saturdays, in the morning (in the afternoon / in the evening), every day, twice a week, three times a month等。例如:
1. I watch TV every day. 我每天看电视。
2. We go on a picnic on Sundays. 我们每周日去野餐。
注意: 频度副词及频度副词短语在句中通常位于be动词或助动词之后, 行为动词之前。通常和一般现在时连用。
【课堂练习】
I、写出下列动词的第三人称单数形式。
catch buy study carry
write fly have draw
drink ________ go _______ stay ________ make ______
look _______ pass_______ come_______ watch______
plant_______ brush________ do_________ teach_______
II、用所给动词的正确时态填空,使句子完整、通顺。
1. Although Bill isn't rich enough, he often______ (give) money to the poor.
2. Tony usually_______ (go) shopping with his friends at weekends.
3. Tracy______ (have) two sisters. They get on well with each other.
4. Tom____ (be) always friendly to others.
5. It______ (take) me half an hour to get back home from school.
6. We usually_______ (talk) with other students in English.
7. Mary _______ (cook) dinner for her parents three times a week.
8. They_______ (be) seldom late for school.
III、根据括号里的中文意思填空,使句子完整、通顺。
9. I go to the supermarket ________________________(一个月三次).
10. My father goes to work_______________________(每天).
11. Jim goes swimming____________________(一周两次).
12. My sister has drawing lessons_____________________(每周六).
IV、单项选择。
( ) 13. — ____ do Julie and Peter usually finish their homework
— They usually ____ their homework before ten o’clock at night.
A. When; finish B. What; finish C. When; finishes D. What; finishes
( ) 14. — _____ your mother go shopping each weekend
— Yes, she _______.
A. Do; do B. Does; does C. Do; does D. Does; do
( ) 15. — I ___ like playing basketball. What about you
— I enjoy ____ it very much.
A. doesn’t; playing B. don’t; playing C. doesn’t; play D. don’t; play
( ) 16. — What does your teacher often ______ you
— She tells us that the Moon ______ around the Earth.
A. tell; go B. tells; go C. tell; goes D. tells; goes
( ) 17. — _____ do you go swimming in summer
— Once ____ week.
A. How long; a B. How often; a C. How long; an D. How often; an
( ) 18. — Do you ____ to the library by bike
— ____. I go there on foot because it is quite near my house.
A. go; Always B. goes; Always C. go; Seldom D. goes; Seldom
( ) 19. — What do they often ____ on Sundays
— They often ______ to the park.
A. do; go B. does; goes C. do; goes D. does; go
( ) 20. — She ____ in hospital. Why
— Because she ____ well.
A. stay; doesn’t feel B. stays; doesn’t feel C: stay; don’t feel D. stays; don’t feel