通用 小升初英语语法讲解通用版 7.一般现在时和There be句型 课件(共23张PPT)

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名称 通用 小升初英语语法讲解通用版 7.一般现在时和There be句型 课件(共23张PPT)
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更新时间 2021-05-07 14:46:32

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——动词(一般现在时)及There be句型
Lesson 7
一般现在时基本用法:
1.表示现在时间内的动作或经常性动作.
如:I go to see my grandmother every week.
2.表示现在时间的状况或特征:
如:He doesn’t like onions.
3.表示状态和感觉:
如:The picture looks beautiful.
4.表示客观真理,科学事实及客观存在:
如:The earth moves around the sun.
5.表示已经决定或计划要做的事,或按自然规律会发生的事:
如:Today is Monday.
一般现在时的构成:
一般现在时主要由动词原形表示.但当主语是第三人称单数的时候,动词就要发生变化了.变成与他相对应的第三人称单数形式.
动词第三人称单数形式的构词法:
1.大多数情况下直接在动词词尾直接加s;
如:look-looks, read-reads, live-lives
2.以s, x, sh, ch, o结尾的动词,在词尾加es;
如:miss-misses, mix-mixes, wash-washes,
watch-watches, go-goes
3.以辅音加y结尾的动词,变y为i再加es;
如:study-studies, carry-carries
4.部分特殊形式:
be---is have----has
动词第三人称单数形式的读音:
1.清辅音/p/, /t/, /k/, /f/后加s,s发音为/s/;
2.在s, x, sh, ch, 部分g, ge结尾的动词变为第三人称单数后读/iz/;
3.其他情况发/z/.
一般现在时否定形式的构成:
一般现在时的否定形式一般是由在谓语动词前加do not,或does not来构成.根据不同的主语选择不同的助动词否定形式.
主语若是第三人称单数形式,我们就选择does not.
一般现在时疑问形式的构成:
Do/ Does+ 主语+动词原形
Do you like coffee?
Does she speak Chinese?
动词have表示“有”的含义时,既可以借助助动词do/does,也可以不借助,而自身起到助动词的作用,构成疑问句和否定句。
I have got a car.
I haven’t got a car./ I don’t have a car.
Have you got a car?
Yes, I have./ No, I haven’t.
Do you have a car?
Yes, I do./ No, I don’t.
与一般现在时连用的时间状语:
常见的与一般现在时连用的时间状语有:
always, often, usually, sometimes, seldom(很少), every day (week, month, year), once a year…
也就是说,如果我们遇到了这些词或者词组通常使用一般现在时.
1.Frank often ____ a film on Sundays.
A. saw B. seeing C. sees D. see
2.Does Peter like eating ice cream?
No, he ____ like eating ice cream.
A. don’t B. didn’t C. do D. doesn’t
3.They usually ____ at 6:00.
A. get up B. gets up C. getting up D. got up
4. Miss Zhang ____ teach Maths at school.
A. does B. doesn’t C. do D. don’t
5. Who ____ in the office?
David is in the office.
A. was B. were C. are D. is
6. My mother ____ noodles, but my father ____.
A. likes; doesn’t B. don’t like; do
C. likes; didn’t D. didn’t like; do
7. When do people usually ____?
A. go swimming B. going swimming
C. went swimming D. go swim
8.My father ____ the flowers every day.
A. waters B. water C. watering D. watered
9.He ____ newspapers every morning.
A. looks B. sees C. reads D. watches
10. I always ____ English on Tuesdays.
A. learn B. learning C. learned D. learns
练习答案
1.C
2.D
3.A
4.B
5.D
6.A
7.A
8.A
9.C
10.A
There be结构:
1.“There be+主语+地点状语/时间状语”表示“某地/某时间有某物”.there是引导词,无词义,be有人称,数和时态的变化.
2.There be中的be在数上与最邻近的主语保持一致.
There be还是have
There be句型表示“(在)某地/某时有某物/某人”,含义是“存在”;而have/has句型则表示“某人有某物”,含义是“拥有”,“所有”.怎样判断该用There be句型还是have句型呢?办法很简单.句首加上一个“在”字,如果句子还通顺的话,就用There be句型;否则用have句型;
1.(在)墙上有一张中国地图.There is a map of China on the wall.(加“在”字仍通顺,用There be句型)
2.(在)我有一张中国地图.I have a map of China.(加“在”字不通顺,用have句型)
注意
There be后加不可数名词和可数名词单数时be动词用is,否定用isn’t;过去式用was,否定用wasn’t.
如:There is some cheese on the table.
There isn’t any cheese on the table.
(否定句中不要忘了把some变成any)
  There is a pear in the bag.
There isn’t a pear in the bag.
There was some bread in the fridge.
There wasn’t any bread in the fridge.
There was an egg in the bowl.
There wasn’t an egg in the bowl.
There be后加可数名词复数形式be动词用are,否定用aren’t;过去式用were,否定用weren’t.
如:There are two apples on the desk.
There aren’t two apples on the desk.
There were three boys in the classroom.
There were three boys in the classroom.
There be句型的一般疑问句:
There be句型的一般疑问句很好变,直接把be动词提前,并把句中出现的some等不定代词进行变化就可以了.
如:There is some water in the glass.
Is there any water in the glass?
There are two oranges in the box.
Are there two oranges in the box?
There be一般疑问句的回答
用什么提问就用什么回答.如:
Are there any teachers in the room?
Yes, there are./ No, there aren’t.
换成其他be动词也一样.
1.What’s on the desk? There ____ a book and two rulers on it.
A. is B. have C. are D. were
2.____ there ____ for me in the bus? No, it’s crowded(拥挤).
A. Is; a room(空间) B. Are; any room
C. Are; rooms D. Is; any room
3.There ____ lots of food, milk and fruits in the fridge.
A. is B. are C. has D. have
4.There ____ a lot of meat on the plate.
A. is B. are C. am D. be
5.There ____ some children on the playground.
A. is B. are C. has D. have
6.look, there ____ some apples on the tree.
A. is B. are C. am D. be
7.How many sheep ____ there on the farm?
A. is B. are C. am D. be
8.There ____ only a little milk in the bottle.
A. are B. am C. is D. be
9.____ there any water in the bottle?
A. Are B. Is C. Be D. Am
10. There ____ any juice in the bottle last night.
A. wasn’t B. was C. isn’t D. is
练习答案
1.A
2.D
3.A
4.A
5.B
6.B
7.B
8.C
9.B
10.C
谢谢
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