高中英语人教版选修8学案Unit2Cloning第2课时

人教版高二英语选修八Unit 2 Cloning 导学案设计：王若妍审核：王超群
课题Period2Language points
课型New class 姓名
学习目标1. Get students to learn the useful new words and expressions in this part:
clone, commercial, producer, undertake, arbitrary, object, forbid, accumulate, cast down, object to, the media, in favour of, etc.
2. Let students learn about cloning
重点难点Get students to understand some differences of some similar words and phrases .
学习流程自主—合作—探究
学习活动二次备课Step one探索新知
Listen to the tape of the text and underline the new words in the text;
Learn the new words and phrases after the teacher . Ask for help if necessary.
Step two新知应用
A:重点单词
1. differ vi.
differ ( vi.), 主要有两个义项：“不同, 相异；不同意, 意见相左”。

常见的搭配有：
1). sb. differ from/with sb. on/upon/about sth.; (某人与某人在....方面意见不同)
2). sth. and sth. differ in…;（某物与某物在....方面不同）
3). sth. differ from sth .（某物与某物不同）
即时练习：用介词from, with, on, about, upon 或in 填空。

(1) We differ _________ him _________ _____ that question.
(2) The two nations differ __ culture
and religion.
(3) The climate here differ _________
that of the South.
汉译英：
这个小男孩在性格方面不同于他的母亲。

2. undertake vt. (undertook; undertaken)
归纳拓展：undertake是及物动词, 主要有两个义项: 着手做, 从事, 进行; 担
任, 承担, 答应, 同意。

即时练习：完成下列句子。

(1) He will _________ __ _______ next month (去旅行).
(2) He __________ __ ____ ____ (承担一项新任务).
3. disturbing adj.
归纳拓展：
disturb vt. 扰乱, 使不安, 弄乱;
disturbed adj. 被扰乱的, 动乱的, 不安的；disturbing adj. 令人不安的。

特别提示:
现在分词表示: 令人怎么样,
过去分词表示: 被使得怎么样, 感到怎么样。

即时练习：用disturb, disturbing, disturbed填空。

(1) I’m very _________ about Alice.
(2) Don’t _______ the papers on my desk.
(3) This country is in a _________ state.
(4) What _________ news it is!
(5) A light wind _________ the surface of the water.
4. object (v. ) & objection ( n.)
归纳拓展：object to (doing ) sth. object + that 从句
objection是名词, 常与have, take, feel 等连用构成词组：
have / take / feel objection to (doing )sth.
即时练习: 句型转换
(1) Have you any objection to my opening the window?
= Would you ______ __ my opening the window?
(2) take objection to smoking.= I ______ __ smoking.
(3) “But he is too young,”she argued.= She ________ that he was too young.
5. forbid vt. (forbade; forbidden)
归纳拓展：forbid 是不及物动词, 常见的搭配有：
(doing) sth.
forbid sb. to do sth.
sb. (doing )sth.
that…
即时练习：完成下列句子
(1) The school ______ ___ _______ __ ______ (禁止学生吸烟).
(2) He is forbidden to _____ ___ _____ (进入这个房间).
6. accumulate
归纳拓展：
accumulate可作及物动词和不及物动词，表示: 收集, 聚集, 堆积。

即时练习：完成下列句子
(1) He quickly ___________ _____ ______ (积蓄了一大笔财富).
(2) Clouds began to __________ __ ___ ___ (在天空中聚集).
B：重点词组
1. cast down 使沮丧（常用于被动语态或作表语）
即时练习：将下列句子译成英语
(1) 听到这个消息他很沮丧。

___________________________________
(2) 发现事情的真相使他很沮丧。

__________________________________
2. pay off
归纳拓展：pay off 有三个义项：成功；付清薪水并解雇；偿还（债务等）。

pay back 报答；报复
用介词back, off, to,填空:
(1）-----your effort is sure to pay_____.
---- Thank you for your encouragement
（2）The supermarket ________ which he had ever paid a visit，was burnt to the
ground.
（3）How can I pay you ________ for all your kindness？
（4）Well，after these years，we’ve at last paid ________ all our debts.
即时练习：将下列句子译成英语
(1) 他在父亲的帮助下还清了全部债务。

________________________________ ___________________
(2) 你的努力会有好结果的。

__________________________
Step three当堂检测
1. She always differs ____her daughter _____how to spend the vacation.
A. on; with
B. with; on
C. at; with
D. from; in
2. It’s about seven o’clcok now, _____, it’s seven three.
A. to be exact
B. to be honest
C. to tell the truth
D. generally speaking
3. Scientists have_____ a major breakthrough in disease.
A. given
B. put
C. sent
D. made
4. He was _____by so many ____matters.
A. disturbed; disturbed
B. disturbing; disturbing
C. disturbed; disturbing
D. disturbing; disturbed
5. Don’t be so ______. Just keep up your spirits.
A. cast down
B. put down
C. turned down
D. taken down
6. The hotel was nice; the beach was beautiful. ____, I’d say it was a great vacation.
A. Altogether
B. Generally
C. Together
D. Usually
7.I object to _____like that.
A. speak
B. speaking
C. be spoken
D. being spoken
8. At the conference he was forbidden _____ the subject again.
A. mentioning
B. to mention
C. mention
D. mentioned
9. The workers were fighting the manager of the factory.
A. against
B. with
C. for
D. about
10.The company is starting a new advertising campaign to ______new customers
to its stores.
A. join
B. attract
C. stick
D. transfer
11. ---Mum, have you _____the shoes?
----of course, Baoby! A. paid back B. paid off C. paid for D. paid in
12. I have ________things to do today.
A. a great deal of
B. lots of
C. a good many
D. plenty of
13. Great changes have ______in Yan’an these years.
A.t aken place
B. happened
C. come about
D. occured
14. _____he came to love sports, he became much stronger than before.
A. Shortly after
B. After shortly
C. Before long
D. Shortly
15.I’m very busy now. Don’t _____me.
A. damage
B. bother
C. forbid
D. cheat
16.If you read fast every day, you _____improve your English level.
A. are bound to
B. are bounded to
C. bound
D. bound to
17. I still see her_____, but not very often.
A. from time to time
B. in time
C. all the time
D. at all times
18.It is reported that the Israeli scientists have ____seed of more than 2000 years back to life recently.
A. sent
B. brought
C. given
D. come
19. He can’t resist ____when he sees such a strange person.
A. to burst into tears
B. burst into tears
C. bursting into tears
D. being burst into tears
20.I’m not trying to criticize you; I’m ____trying to find out how the accident happened.
A. merely
B. completely
C. hardly
D. normally
Step four 反思质疑
板书设计
教学反思。