冀教版九年级下册英语《Lesson 15: Cloning Questions》精品教案

桂馥兰香

Lesson 15: Cloning Questions
Teaching Content:
Mastery words and expressions: neither, nor, neither…nor…, dead
Oral words and expressions: mammoth
Teaching Aims:
1.Be familiar to the e-mail.
2.Know more about cloning.
掌握的词汇及短语
neither, nor, neither…nor…, dead
识别的词汇短语
mammoth ching Important Points:
1.The expressions of ability and inability.
2.The use of coordinating conjunction.
Teaching Difficult Points:
The use of coordinating conjunction.
Teaching Preparation: pictures
Teaching Aids: flashcards, audiotape, pictures
Type of lesson: new lesson
Teaching Procedure:
Step1. Lead in by showing some pictures of cloning. Let the students talk about the use of cloning.
What is cloning?
What is cloning used for?
What can we do with cloning?
Step2. Listening task:
Listen to the tape and answer the following questions:
1.What did Li Ming study this week in school?
2.What’s the name of the first cloned animal?
Ask the students to answer the questions in class in oral.
Step3. Reading task:
Read the text and decide the statements are True or False.
1.Li Ming doesn’t think cloning is interesting.
2.Li Ming knew how the sheep Dolly cloned.
3.Jenny has ever studied cloning.
Finish the task in class in oral.
Step4.Read the text again and find the sentences with the new words. Let the students guess the meanings of the new words. Give more examples with the new words.
I knew that English scientists had cloned a sheep, but I knew neither how nor why.
I chose mammoths.
Ask the students to make sentences with neither…nor…
He is neither a teacher nor a doctor.
Neither he nor I am thirteen years old.
Step5. Sum the main idea of the two e-mails. Let the students tell them in their own words, not word by word according to the content of the e-mails.
重点语句分析：
1.It was quite interesting! 他非常有趣！
interesting adj. 有趣的，一般指事物，表示“令人感到有趣的”。
I have an interesting book. 我又一本有趣的书。
interested adj.常指人，表示“感到有兴趣的”，常用词组be interested in。
They are interested in math. 他们对数学有兴趣。
【注意】：
interested只能做主语，而interesting既可以作表语，有可以作定语。
2.Scientists are doing so many new things with DNA. 科学家们正在用DNA制造新东西。
不同的“用”
1)with介词“用”，后面常跟表示“某种工具或手段”的名词。
I cut the apple with a sharp knife. 我用一把锋利的刀子削苹果。
Tom drew the picture with a pencil. 汤姆用铅笔画画。
2)动词“用，使用”。
Mr. is used the names of men. 用在男性姓名前。
How do you use a telephone? 你怎样使用电话？
3)介词“用”，后面常跟表示“某种原料、语言”的名词。
We often write in ink. 我们经常用墨水写字。
Please speak in English. 请用英语讲话。
3.I knew that English scientists had cloned a sheep, but I knew neither how nor why. 我知道英国科学家已经克隆出了一只绵羊，但我既不知道怎样克隆也不知道为什么克隆。
neither…nor…“既不……也不可……”，连接任意两个并列的成分。当neither…nor…连接两个主语时，谓语动词应遵循“就近原则”，即与最近的主语保持一致。
She likes neither butter nor cheese. 她既不喜欢黄油也不喜欢奶酪。
Neither dad nor mum is at home. 今天爸妈都不在家。
【友情提示】：若将neither…nor…句型变为肯定句，只需把neither…nor…改为both…and…即可，同时谓语动词必须用复数形式。
Both dad and mum are at home. 今天爸爸和妈妈都在家。
4.Some of my classmates thought it was a good idea, but I don’t think so. 一部分同学认为那是一个好想法，我却不这么认为。
some of…表示“……中的一些”，其后要用名词的复数形式。如：
Some of the students wear black shorts. 一些学生穿黑短裤。
5.How would you feel if a scientist designed someone identical to you? 如果科学家设计了一个和你完全一样的人，你感觉怎样？
feel用法小结：feel通常具有行为动词和联系动词两种不同的用法。
1)feel用作行为动词，通常用于以下几个句式：
a. feel跟名词或代词作宾语，意为“感觉到，触摸”。如：
I can feel something on my face. 我能感觉到我脸上有什么东西。
The children feel the elephant one by one. 孩子们一个接一个地摸那只大象。
b. feel后跟复合宾语（宾语+宾语补足语），意为“觉得”。如：
I felt somebody walking behind me. 我觉得后面有人在跟着我走。
She feels him to be the best player. 她觉得他是最好的运动员。
Many students feel English difficult to learn. 很多学生觉得英语难学。
c. feel常跟在动词后作宾语补足语的有现在分词、不定式、形容词等。
2)feel用作连系动词，后跟形容词作表语。如：
I feel very cold. 我觉得很冷。
I didn’t feel well this morning. 今天上午，我觉得不舒服。
She doesn’t feel well. 她感到不舒服。
【拓展】：
连系动词还有look（看上去），turn（变得），get（变……）等。
The leaves turn green in spring. 春天树叶变绿了。
The days get shorter in winter. 冬天白天渐渐短起来了。
使用连系动词feel时常用一般现在时态，而不用进行时态。如：
Do you feel cold? 你感到冷吗？
I feel sick. 我觉得不舒服。
【注意】：
表示感觉的动词feel, hear, watch, see后的动词不定式需省略to。
design vt.&vi.设计；会址；绘图
6.Who designed the new school? 谁设计的这所学校？
【拓展】：
design n.（常与for连用）计划，图样，设计图，目的
Here is the design for a new house. 这是一所新房子的设计图。
They have designs on your money. 他们对你的钱有企图。
7.First we saw a movie about Dolly the sheep. 首先，我们看了一部克隆羊多莉的电影。
movie n.电影，影片，影院
see a movie去看电影
【知识衔接】：
film n.电影，影片；拍电影，拍成电影
Have you seen any good films lately? 最近你看过什么好电影吗？
The television company is filming in our town. 电视公司正在我们镇上拍片子。
8.Maybe I will become a scientist and discover the answer. 也许我将来会成为一名科学家，我会找到答案的。
1)maybe adv.或许，大概
Maybe it is right. 这或许是对的。
Maybe he will help you. 也许他会帮助你。
【辨析】：maybe与may be
maybe和may be虽然形式相像，但意义不同。maybe是副词，意为“很可能；大概”，是美语用法，在英国多用perhaps，在句子中作状语。may be是情态动词may + be，在句子中作谓语，意思为“可能是……”。如：
Maybe you are right. 也许你是对的。
He may be a teacher. 他可能是个教师。
2)discover vt.发现，发觉
Columbus discovered America in 1492. 哥伦布于1942年发现了美洲。
【注意】：
discover意为“发现”（原先就存在而不为人知的地方和事实）；invent意为“发明”（原先不存在的机器或方法等）；而find意思是“找到丢失的或不知道的人或物”。
Who invented the computer? 谁发明了电脑？
Where did you find the lost child? 你们在哪儿发现那个丢失的孩子的？
9.Talk about what, where, when, why and how cloning is taking place. 谈论一下克隆正在发生的情况，包括克隆对象、克隆地点、克隆时间、克隆原因和克隆方式等。
take place通常指“（某事）按计划进行或按计划发生”。
Great changes have taken place in China. 中国发生了翻天覆地的变化。
此外take place还有“举行”的意思。
The meeting will take place next Friday? 会议将在下周五举行。
【知识衔接】：
happen常指具体事件的发生，特别指那些偶然的或未能预见的“发生”。
New things are happening all around us. 我们身边总有新事发生。
happen还可表示“碰巧，恰好“之意。
It happened that I had no money on me. 我刚好没钱了。
Step6. Come to “LET’S DO IT”.
Divide the class into groups of three or four. Use the Internet or other tools to find more information about cloning.
Talk about what, where, when, why and how cloning is taking place.
Everyone writes down a short passage, then exchange it with the others. Next one of the members of the group gives a report in front of the class.
Step7. Homework
1.Finish off the exercises in the activity book.
2.Ask your parents for some information about cloning.
Summary:
Cloning is new to the students. Let them get more information on the Internet. That is helpful for them. It is helpful for them to use the Internet for some important information. On the other hand, the coordination conjunctions are important in this unit. So make more practice in class.
练习
Ⅰ. Fill in each blank with the proper word from the brackets:
1.We can’t clone _________(die) animals.
2.His grandparents have been _____(die) for many years.
3.How would you feel if a scientist designed someone ___________(identify) to you?
4.I didn’t know much about ___________(clone).
5.She is __________ at the __________ news. (surprise)
6. Neither Lucy nor her mother ________(be) able to speak German.
7. Both Mom and Dad _______(be) going to have a meeting in the hall.
8. Either he or I ________ right.
9. Not only he but also she ________(like) pop music.
10. If I _______ a bird, I ____________(fly) to the sky.
Ⅱ. 同义句转换，每空一词：
1.He doesn’t have a mobile phone. And she doesn’t have one, either.
     _______ he ______ she _______ a mobile phone.
2. Both he and she like skating.
    _____ ______ he _____ ______ she _______ skating.
3. He is a student. She is also a student.
    ______ he ______ she _______ students.
4. I left it on the table or in the drawer.
    I left it ______ on the table _______ in the drawer.
5. We like English very much.   We like English ____ ____.
6. Thank you for your help.      ________ for _________ me.
7. We are all fine.        _________ is _________.
8. Maybe your book is in the desk.
    Your book _______ ________ in the desk.
9. The passage isn’t difficult for me to read.
     The passage is _____ ______ _______ I can read it.
10. The boy is too young to dress himself.
     The boy isn’t ______ ________ ______ dress himself.
11. No one knows anything about it but my parents.
     No one __________ my parents _____ anything about it.
12. He didn’t play soccer yesterday. I didn’t, either.
      He didn’t play soccer yesterday. ___________ ____ ___.
13. He has been to Tokyo. I have been to Tokyo, too.
      He has been to Tokyo. _______ ________ _______.
Ⅳ把下列句子翻译成英语，每空一词：
1.她又冷有饿。(not only … but also…)

2.杰克和我都没有看过这部电影。(neither … nor …)

3.约翰和麦克都擅长游泳。(both … and …)

4.不仅你，而且我也计划去。(not only … but also …)

5.不是你就是她必须打扫房间。(either … or …)

6. 如果你是科学家，你想克隆什么？