课件20张PPT。第二篇 专项提升第三部分 句型巩固 在英语中,根据句子用途的不同,可以分为陈述句、疑问句、祈使句和感叹句四类。此外,there be句型作为一种特殊而重要的句型,在小学阶段也应注意掌握。知识梳理一、陈述句的概念
陈述句是用来陈述事实或者说话人的看法的句子。它包括肯定句和否定句两种。在书写时,句末用句点;在朗读时,用降调。如:
This is a nice book. ( )
Susan likes maths very much. ( )
My father doesn't go to work on the weekend. ( )
They aren't going to climb the mountain this Saturday. ( )第一节 陈述句二、肯定句变否定句的基本方法
1. 句中含有be动词的句子:变为否定句时只需在be动词后加not。如:
I am in Grade Six this year.→I'm not (I am not) in Grade Six this year.
Mike is going to play football this afternoon.→Mike isn't (is not)going
to play football this afternoon.
These are red apples.→These aren't (are not) red apples.
It was a fine day yesterday.→It wasn't (was not) a fine day yesterday.
We were happy at that time.→We weren't (were not) happy at that time. 2. 句中含有情态动词的句子:变为否定句时只需在情态动词后加 not。
如:Peter can fly.→Peter can't (can not) fly.
You should stop smoking now.→You shouldn't (should not) stop smoking now.
3. 句中含有实义动词的句子:谓语动词为行为动词的句子变为否定句时,要根据人称和时态选用助动词do的相应形式(do, does, did),并在其后加 not。如:
I like listening to music.→I don't like listening to music.
My father likes playing sports.→My father doesn't like playing sports.
Grandma does housework every day.→Grandma doesn't do housework every day.
He did his homework last night.→He didn't do his homework last night. 【注】(1)加do not, does not或did not改为否定句以后,要把原句的动词改为动词原形,特别是当原句中的谓语动词是第三人称单数形式does或过去式did时,改为否定句一定要记得在doesn't或didn't之后加上do。
(2)肯定句中含有some或some-的合成词时,变为否定句时需将其改为any或any-的合成词。如:
I have some pens.→I don't have any pens.
There is something wrong with the TV.→There isn't anything wrong with the TV. 4. 几种特殊形式的否定句
(1) 肯定句中含有every-或some-的合成词时,变为否定句时将其改为no-的合成词。如:
Everything is ready.→Nothing is ready.
There is something on the table.→There is nothing on the table.
(2) 肯定句中含有always,usually或ever时,变为否定句时将其改为never。如:
He is always late for school.→He is never late for school.
I usually go to the park on foot.→I never go to the park on foot.
(3) 肯定句中含有many或much时,变为否定句时将其改为few或little。如:
Many students know him.→Few students know him.
There is much milk in the bottle.→There is little milk in the bottle.
(4) 肯定句中含有both,both … and … 或all时,变为否定句时将其改为neither,neither … nor … 或none,并注意谓语动词要相应变化。如:
Both of us are students.→Neither of us is a student.
Both you and I are right.→Neither you nor I am right.
All the students are in the classroom.→None of the students is in the classroom.
(5)“I think …”句式变为否定句时,只要在think之前加 don't 即可。
如: I think you are right.→I don't think you are right.
考点精析考查陈述句的基础句型的理解能力考点【例1】Listen and choose. 你将听到一个句子,选择你所听到的选项,并将其字母编号填在括号内。
( )A. here B. hear C. near 听力材料:Sorry, I can't hear you clearly.
解析:此题考查通过句义区分同音词。这要求学生能听懂句子的意思和了解单词的用法,同时根据句子意思分析选择是关键。
答案:B[【例2】Read, choose and fill. 请你用所给的词填空。每空只填一词,每词只用一次。
I love Animal World, but I __________ like going to the zoos. learn, swim, different, farm, took, trees, monkeys, don't, wrote, on 解析:此题考查根据前后提示选择正确的单词。这要求学生通过读懂句子、分析句子,从而选出正确的答案。其中,根据but作为提示,表示前后句子意思相反。
答案: don't举一反三Read and fill. 用括号内所给单词的适当形式填空。1. There _____ some bags in the room. The black one _____ mine. (be)
2. A horse _____ run, but it _____ fly. (can)
3. David always _____ his homework at 7:00 p.m. (do)
4. Look, the fish _____________ in the water. They are so cute. (swim)
areiscancan'tdoesare swimming过关检测一、Read and choose. 单项填空。( )1. My father __________ like apples.
A. isn't B. doesn't C. don't
( )2. I __________ many birthday presents.
A. am B. has C. have
BC( )3. My mother __________ badminton well.
A. is play B. play C. plays
( )4. I __________ at home last Sunday.
A. am B. did C. was
( )5. The girl _________ like sports. She _________ play badminton.
A. /; isn't B. doesn't; can't C. don't; canCCB二、Read and fill. 将下列句子改为否定句,每空一词。1. This is a desk.
This __________ a desk.
2. My sister can draw pictures.
My sister __________ draw pictures.
3. We do morning exercises every day.
We __________ do morning exercises every day.
4. Mike does his homework after dinner.
Mike __________ do his homework after dinner.
5. My grandparents did sports in the garden yesterday.
My grandparents _________ do sports in the garden yesterday. isn'tcan'tdon'tdoesn'tdidn't6. There is something wrong with my bike.
There __________ __________ wrong with my bike.
There _____ __________ wrong with my bike.
7. Both Joan and I are in Class One.
__________ Joan _______ I am in Class One.
8. All of us can swim.
__________ of us can swim.
9. You can play basketball here.
You __________ play basketball here.
10. I think it is going to rain tomorrow.
I __________ think it is going to rain tomorrow. isn'tanythingisnothingNeithernorNonecan'tdon't三、Read and write. 按要求改写句子。1. This is a banana. (改为复数形式)
_________________________________________________________
2. There are some apples on the desk. (改为否定句)
_________________________________________________________
3. I felt bad last night. (改为否定形式的同义句)
_________________________________________________________
4. I'm going to Beijing next week. (改为一般疑问句,并作肯定回答)
一般疑问句: ______________________________________________
肯定回答: ______________________________________________These are bananas.There aren't any apples on the desk.I didn't feel well last night.Are you going to Beijing next week?Yes, I am.