九年级英语学案unit1第一课时

Unit1.The Changing World

【学习目标】初步了解现在完成时和have/has been to与have/has gone to

的用法。

重点和难点：1.现在完成时的用法。

2.现在完成时和一般过去时的区别。 【预习导航】

一.复习一般过去时的用法。

1. 表示过去某时间发生的动作或存在的状态。一般有具体的过去的时间状语。 eg.We visited the farm last week. 2. 表示过去的习惯或经常发生的动作。（过去常常做某事也可以用used to do sth.来表示）

eg.When I was in the countryside , I often swam in the river. 3.常和一般过去时连用的时间状语有：last night, last week, some years ago, in 1990, in the past , the other day , yesterday , just now 等。

请你写出三个一般过去时的句子。

(1).___________________________________________________ (2)._______________________________________________ (3)._______________________________________________

二.复习了一般过去时，那么今天我们来学习一个新的时态“现在完成时”。

定义：表示过去发生的或已经完成的某一动作对现在造成的影响或结果,它一

般没有具体的过去的时间状语，常和already, yet, never, ever, just,

before, several times等连用。(when不能对现在完成时进行提问) 构成：have/has+动词的过去分词

动词的过去分词的构成：规则动词的过去分词和它的过去式同形，不规则动词的过去分词见书后面的附表。

eg. I have finished my homework. (我已经完成了我的作业) He has written a letter. (他已经写了一封信)

(1)否定句：主语+haven’t/hasn’t+动词的过去分词+其他.

eg. He hasn’t seen this film.

They haven’t visited China.

(2)一般疑问句：Have/Has+主语+动词过去分词+其他？

回答：Yes, 主语+have / has; No, 主语+haven’t / hasn’t. eg. Have you cleaned the classroom?

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Has your mother finished cooking ?

(3)特殊疑问句：特殊疑问词+have/has+主语+动词的过去分词+其他？ eg. What has happened? Where has he gone?

挑战自我：

1. They have cooked the meals.

______________________________________（变成否定句）

______________________________________? Yes, ____ _____ (变成一般疑

问句，并作出肯定回答)

2. He has bought a new bike.(对划线部分提问) ___________________________________________ 3. I _______ _______my clothes.(我已经洗过衣服了) 4. _______you _______the floor?(你擦过地板了吗？) 5.He _______ _______his lunch.(他还没有吃午饭) 【活动与探究】

have / has been to 与have / has gone to

have/has been to表示（曾经）去过某地，现在人已返回，不在那里了，只对过去经历的一种回忆。eg. Have you ever been to Beijing ?(是问你以前的

经历，你现在不在北京这个地方了).

have/has gone to 表示去了某地，可能在某地或者是在去某地的路上，也可能是在返回的路上，总之不在说话的现场。eg. --Where is your father? --He has gone to London.他去伦敦了。（“父亲”不在说话的现场）

测试一下：用have/has been to 与have/has gone to完成下面几个题目。 1.--Where is your mother?

--She______________the supermarket.

2.--Have you ever_________the Beijing Zoo? --No.But I’ll go there this weekend. 3.I___________________there twice.

4.He hasn’t _______________there before. 5.--This morning I saw Han Fang.

--It can’t be her. She________________Shanghai. 6.Mr.Wang isn’t here, he______________Japan. 【自我检测】

( )1.--May I speak to John?

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--Sorry, he______Japan, but he______in two days.

A.has been to; will come back B.has gone to ; will be back

C.has been in;would come back D.has gone to; won’t come back

( )2.Mr. Green spent the whole night______TV last night.

A. watch B. watches C. watching D. to watch

( )3.--Jimmy is leaving for a holiday. --Really? Where_____he_____?

A.has; gone B.will; go C. did; go D. does;go

( )4.--Is Miss Gao here?

--No,she isn’t. She______to the station to meet Mr.Brown.

A.went B.has gone C.has been D.would to

( )5.We______our breakfast already. We_____it at school just now.

A. have had; had B.had; have had C.have had;have had D. had; had

( )6.--________my pen?

--Yes,I have. I saw it on your desk a moment ago. A.Do you see B.Did you see C.Would you see D.Have you seen

( )7.Have you ever_____any activities to help children?

A. take part in B. taken part in C.join D. to join

( )8.--Xu Ming _______Canada for his holiday.

--Yes.He______there before.And he will stay there for a month this time.

A. has gone to ; has gone B. has gone to; has been C.has been to; has gone D.has been to; has been

( )9.I like Beijing and I______there several times.

A.have gone to B.have been to C.have been D.have gone

( )10.--The classroom is empty. Where are the students?

--Oh,they_____the zoo.

A.go B.have gone to C. have been to D.went

学后反思__________________________________________________ _________________________________________________________ _________________________________________________________

作业卡：

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一.用所给词的适当形式填空。

1.--Where’s our chairman? Lucy is looking for him.

--He___________(go) to the school library and he will be back soon. 2._______you ever_______(be) to Tibet before? 3.--How do you like Qingdao?

--Very much. I________to Qingdao twice and it’s a beautiful city.(be) 4.--Where’s your father, Rita? --He___________ to India.(go)

5.Have you ever______(help) the children?

6.Tom_______into his room and shut the door.(go) 7.--Bob,_______you________(wash) your car yet? --Yes.I________ ________(make) my bed, too.

8.Bill spends much time________(watch) TV every night. 9.--Zhao Ming ,_______you ever_______(play) chess? --Yes, I________ chess when I was young.(play) 10.--Have you ever been to Changsha?

--Yes.I___________(go) there two years ago. 11.Yesterday I________(see) him on the street.

12.--When_______you_______(go) there? --I went there last month. 13.He________(visit)America twice.

14.I_________(write) a letter and I will post it now.

15.--________you________(see) the UFO? --No, never.

二．按照要求做题。

1.We have cleaned our rooms.(改为一般疑问句) _____you______your rooms?

2.Did Bill have breakfast yesterday?(改为现在完成时) _____Bill______breakfast yet?

3.Have you ever been a volunteer?(做出否定回答) _____,I_____.

4.He has gone to the bank.(对划线部分提问) _____has he_____?

5.My uncle has gone to America.(用yesterday改写句子) My uncle_____ _____America yesterday.

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