[推荐学习]九年级英语上册Unit5LookintoScienceLesson29DNA_TheSt

合集下载

【小初高学习]2018年秋九年级英语上册 Unit 5 Look into Science Less

Unit 5 Look into Science●1 correct adj. 正确的；恰当的[观察] Let's test which theory is correct.让我们测验一下哪种理论是正确的。

We must make sure that things are done correctly without mistakes.我们必须确保事情做得准确无误。

[探究] correct的副词形式是________，意为“________”。

[拓展] correct 还可用作动词，意为“改正；纠正”。

Can you help me correct the mistake that you find?你能帮我改正你发现的错误吗？1．2016·无锡To my surprise, the 3yearold boy can spell all those words ________(正确地)．●2 method n. 方法；办法[观察] That's called the scientific method.那被叫作科学方法。

这是算出那道数学题最好的方法。

The good way to keep healthy is to take more exercise.保持健康的好方法就是多锻炼。

His money wasn't earned by honest means.他的钱来路不明。

2．老师正在给我们演示一种新的书写方法。

The teacher is showing us ________ ________ ________ ________ ________．●3 force n. 力量v. 迫使；强迫[观察] The force of the air keeps the water in the jar.空气的力量使水留在广口瓶里。

The truck was forced to stop for repairing. 那辆卡车被迫停下来修理。

K12推荐学习2018年秋九年级英语上册 Unit 5 Look into Science Less

Unit 5 Look into Science课时分层训练(二十六)[Lesson 26]Ⅰ.根据句意及首字母提示补全单词1．He blew out the c________ and went to bed.2．The river is s________. You can even see the bottom of it.3．Our team beat the other in the football m________.4．He used the l________ to light the cigarette.5．The doctor e________ the patient carefully.Ⅱ.用方框中所给单词或短语的适当形式填空be made up of, use up, one fifth，two or three minutes, match1．There are only three ________________ in the box.2．Keep the candle burning for ________________．3．We have ________________ all the salt. Please go and buy some.4．A car ________________ many different parts.5．About ________________ of the students in my class are girls.Ⅰ.单项选择( )1.Water is ________ oxygen and hydrogen(氢气)．A．made of B．made from C．made into D．made up of( )2.2017·来宾________ of the students in Sunshine Middle School________ from the countryside.A．Two third; is B．Two thirds; are C．Two thirds; is D．Two third; are ( )3.2017·东营—A little monkey might feel sad because of having a new baby sister or brother!—Yeah. I didn't know that________ I saw the film Born in China.A．if B．until C．since D．although( )4.Sometimes you have to stop________ too much and just go where your heart takes you.A．think B．to think C．thinking D．thinks( )5.He told the interviewer that he had ________ money to buy old bikes.A．put away B．turned off C．taken out D．used upⅡ.完形填空There have been many great inventions that change the way we live. The first great __1__ was one that is still very important today—the wheel. This made it easier for man __2__ heavy things and to travel long distances. For hundreds of years after that,there were __3__ inventions that had as much effect as the wheel. Then in the early 1800s the world started to change __4__. There was little unknown land left in the world. People did not have to explore much any more. In the second half of the 19th century many great inventions were made. __5__ them were the camera, the electric light bulb and the radio. These have all become a big part of our life today.The first part of the 20th century saw more great inventions. The helicopter was in 1909. Movies __6__ sound was in 1926. The computer was in 1928. And jet planes were in 1930. This was also a time when a new __7__ was first made. Nylon came out in 1935. It changed the kind of clothes people wear. Of course new inventions continued to be made. Man began looking __8__ ways to go into space. Russia made the first step. Then the United States took another. Since then other countries, including China and Japan, __9__ their steps into space. In 1969 man took his biggest step away from earth. __10__ first walked on the moon. This was certainly just a beginning. New inventions will someday allow us to do things we have never yet dreamed of.( )1.A.scientist B．artist C．musician D．invention( )2.A.carry B．carrying C．to carry D．carried( )3.A.few B．a few C．little D．a little( )rgely B．differently C．greatly D．freely( )5.A.Between B．Among C．Before D．After( )6.A.in B．of C．on D．with( )7.A.mistake B．product C．world D．material( )8.A.for B．out C．after D．around( )9.A.made B．were made C．have made D．had made( )10.A.Chinese B．Japanese C．Americans D．Russians教师详解详析【课时分层训练】课内基础自测Ⅰ.1.candle 2.shallow3．match 4.lighter5．examines/examinedⅡ.1.matches2．two or three minutes3．used up4．is made up of5．one fifth课后巩固提升Ⅰ.1.D be made of意为“由……制成”(从制成品中可以看出原材料)；be made from 意为“由……制成”(从制成品中看不出原材料)；be made into后接成品，意为“被制成……”；be made up of意为“由……组成”。

2021年九年级英语上册Unit5LookintoScienceLesson3ScienceAffe

2021年九年级英语上册Unit5LookintoScienceLesson30ScienceAffectsUs教案新版冀教版1. Analysis of the StudentsThe students of Grade 9 have mastered certain vocabularies，expressions and structures. They also have the abilities of self-teaching and working in groups. Most of them are willing to express their opinions in English.2. Analysis of Teaching ContentLesson 30 is the sixth lesson in Unit 5, Book 5.This unit focus on the subject Look into science, also teach the students something about science. Students cares about the subject because it is close to everyone. Lesson 30 mainly talks about the experiments of Wang Mei and Jenny, this lesson also talks about the science affects to us. It asks the students can describe the experiments.实用文档【知识目标】1.To master the word : mobile phone, suggest, affect, discovery.2. To master the phrases: turn… over, push up, push down, in place.【能力目标】Improve the students’ ability of speaking, listening, reading and writing.【情感目标】Know more about the nature, and establish a scientific outlook on life.【教学重点】To master the words and phrases.【教学难点】To master the meaning of the passage, conclusion the knowledge of this unit.实用文档Tape recorder, MultimediaStep 1. Warm-up1. Enjoy a video about the experiment.2. Free talk: What would life be like without puters or mobile phones? Step 2. Presentation1.Explain the new words.2.Show the pictures of Jenny and Wang Mei to elicit the lesson.3.Read the lesson and fill in the blanks:Science affects people’s___________ lives. W ithout the scientific developments of recent years, our lives would be very different. Can you imagine life without puters or__ _______? Scientific__________ are making our lives better and better. DNA is really one of the most amazing things on the earth. Many people think it will__________ the world.实用文档4.Check the answers.5.Explain the language points:suggest v. 建议，提议1) suggest sth. to sb. 向某人建议某事2) suggest doing sth. 建议做某事3) suggest that 建议……4) suggestion n. 建议better and better比较级+and+比较级: “越来越……”。

九年级英语上册Unit5LookintoScience语法聚焦五新版冀教版

Unit 5 Look into Science1. A blueprint is a drawing that shows how to put a house together with many different parts.蓝图就是展示如何将许多不同的部分组建成一栋房子的图纸。

2. From your DNA, scientists can identify not only you, but also people who are related to you.从你的DNA中，科学家们不仅能够鉴别你，而且能鉴别与你相关的人。

3. The experiment you did sounds interesting.你们做的那个实验听起来有趣。

4. Here are the pens which I bought yesterday.这些是昨天我买的钢笔。

1. 定义以上四个句子都是包含定语从句的主从复合句。

定语从句在复合句中作________语，修饰主句中的________词或代词。

2. 用法在定语从句中，被修饰的词称为先行词，定语从句通常位于先行词 ________(之前/之后)，由关系词引导。

初中阶段我们要能辨认并理解由that，which, who等关系代词引导的定语从句。

which 代指________，who 代指________，that 既可指________，又可指________。

that或which在从句中作________语或________语；当作________语时，that或which可省略。

3. 注意：that 和which 指物时，可以互换，但在下列情况下必须使用that。

(1)先行词是all, everything, nothing, little something, anything等时。

That is all that I know.我知道的就是这些。

【配套K12】[学习]九年级英语上册 Unit 5 Look into Science Lesson

Unit 5 Look into ScienceLesson 27 Plant Danny1. Analysis of the StudentsThe students of Grade 9 have mastered certain vocabularies，expressions and structures. They also have the abilities of self-teaching and working in groups. Most of them are willing to express their opinions in English.2. Analysis of Teaching ContentLesson 27 is the third lesson in Unit 5, Book 5.This unit focus on the subject Look into science, also teach the students something about science. Students cares about the subject because it is close to everyone. Lesson 27 mainly talks about learn【知识目标】1.To master the words: solar, telescope, certainly, unless, double, mystery, belong to, look through.2. To master the expressions: solar system, at night, even if, look through, come out,be worth +n. be worth +v-ing.【能力目标】Improve the students’ ability of speaking, listening, reading and writing. Know more about the foreign occupation.【情感目标】Know more about the foreign occupation, Keep on trying, and you will succeed. 【教学重点】1. Know more about the astronomer.2. To master the adverbial clauses.【教学难点】To learn the astronomer's occupation.Tape recorder, MultimediaStep 1. Warm-upFree talk:Think about it!1. Do you like science? Why or why not?2. Do you know any of the planets in the solar system?Step 2. Presentation1.Explain the word planet and the word solar.2.Elicit the word telescope: How to see the solar system?3.Show the picture of telescope and explain it.4.Show the picture of the text and ask students: What do they do? What do they see?5.Question: What does the solar system include?6.Explain the question: The earth, the sun and the moon all belong to the solar system. Our solar system is in a galaxy called the Milky Way. Scientist say the universe contains billions of galaxies.7.Explain the new words.8.Listen to the dialogue and tick the correct answers.(1)What did Danny do last night?He tried to study the moon.He tried to find a new planet.(2)What did Danny use?A telescope.A book.(3)What did Danny need?More sleep.More stars.9.Check the answers.nguage points:arrive意为“到达,来到”，为不及物动词,后接表地点的名词时,需使用介词in或at。

【配套K12】[学习]九年级英语上册 Unit 5 Look into Science Lesson

Unit 5 Look into ScienceLesson 25 Let’s Do an Experiment同步练习1. Does he often do e __________ in physics class?2. I’ll p ____ that what she said is right.3. She likes reading books about s _____.4. Mr. Smith sat in a corner and o _______ what was going on with this little aunt.1.The box is covered________ a piece of the paper.2.A strange thing happened_________ her last weekend. is another way________ saying television.4.Please fill the jar_________ water.1. Is the theory right?A. ideaB. wayC. mindD. answer2. Turn the bottle upside down, please.A. awayB. offC. upD. over3. When I do the experiment, you must see it.A. learnB. knowC. watchD. observe4. -- Excuse me! Can I go to the party with you?-- Certainly.A.NoB. SorryC. SureD. Thanks1. is, to, enough, hold, it, strong, water, the (?)2. did, physics, experiment, they, their, an, class, in (.)3. fill, water, a, I, with, jar (.)参考答案1.experiments2.prove3.science4.observed1.with2.to3.of4.with解析：1.盒子被纸张覆盖，用介词with表示用... ...覆盖。

【配套K12】[学习]九年级英语上册 Unit 5 Look into Science Lesson

Unit 5 Look into Science Lesson 29 DNA-The Story of You同步练习1. Sarah’s homework isperfect(除了) a few spelling mistakes.2. I (能) look after myself when I was Grade One.3. The company produces (数以百万计的) telephones a year.4. “(总的来说), German cars are pretty good..5. Her heart attack could (与……相关的) her car accident yesterday.1. That is the __________ (identify) hotel that we stayed in last month.2. Your sisters are people _________ (relate) to you.3. Do you know who is the _________ (own) of the bike?4. Your body uses this pattern _________ (build) itself.5. He has his own DNA, but it repeats the patterns from his __________ (parent) DNA.1. 除了门小外,这座房子很漂亮。

The house is beautiful ______ _____ the small doors.2. 她的头发和皮肤有同样的DNA。

Her hair has ______ _______ _______ _____ your skin.3. 我不但会唱歌，而且会跳舞。

I can _____ ______ sing ______ ________ dance.参考答案1.except for2.was able tolions of4.In general5.be related to1.identical2.related3.owner4.to build5.parents’解析：1.identify的形容词为identical。

【配套K12】[学习]九年级英语上册 Unit 5 Look into Science Lesson

Lesson 26 Keep the Candle Burninglight, use up, be made up of, fill…with, work 1．Tina, ____________ the bottle ____________ some water.2．The team ____________ ten girls and eight boys.3．Please ____________ all the candles on the cake.4．We have ____________ the salt. Please go and buy some.5．He kept ____________ the whole day.Ⅲ.单项填空( )1.—________ did he jump?—About 2.5 metres.A．How much B．How farC．How soon D．How often( )2.Over ________ of the students went to the lab to do experiments.A．two third B．two thirdsC．second three D．second thirds( )3.—How do you like the popular documentary A Bite of China(《舌尖上的中国》)?—Excellent! You won't realize how wonderful our Chinese food is ________ you watch it.A．when B．asC．after D．until( )4.—I'm sorry to have kept you________ for such a long time.—That's OK. I came here a minute ago.A．wait B．waitingC．waited D．to wait( )5.We ________ all the washing powder(洗衣粉), so we have to buy some.A．used up B．have used upC．cleaned up D．has cleaned up( )6.This music group is ________ five girls and three boys.A．made of B．made inC．made from D．made up ofⅣ.句型转换，每空一词1．You can't play the guitar in the classroom. (改为祈使句)________ ________ the guitar in the classroom.2．Dave's father went to bed after he finished his work last night. (改为同义句)Dave's father ________ go to bed ________ he finished his work last night.3．Dave was making__a__model__plane in the classroom at that time. (对画线部分提问)________ ________ Dave ________ at that time?4．My brother wasn't strong. He couldn't lift the box. (改为同义句)My brother wasn't ________ ________ to lift the box.5．The bottle is full of water. (改为同义句)The bottle is ________ ________ water.Ⅴ.连词成句将所给词语连成句子，标点已给出。

九年级英语上册 Unit 5 Look into Science主题写作五 (新版)冀教版

Unit 5 Look into Science本单元的话题为“谈论科学”。

通过本单元的学习，学生要能够用英语表达出科技对人们日常生活产生的影响。

写作此话题时多采用一般现在时态。

2016·南充改编对于“中学生在校是否可以使用手机”，不同学生有不同的看法，请你根据下面表格中的提示写一篇短文，向某英语报社投稿。

要求： 1.包含所有要点，不逐字翻译，围绕要点适当发挥；2．文中不得出现真实人名、地名、校名等；3．100词左右。

常用短语1．花费时间做某事________________2．对……有益/害处________________3．远离________________4．依靠；依赖________________5．与……联系________________常用句子1．It's convenient for us to keep in touch with others.2．It can also cause many problems.3．It also has bad effects on us students.高分模板Nowadays, ①more__and__more teenagers use mobile phones. Can middle school students use mobile phones at school? Different students have different opinions about it.Some students think they can use mobile phones at school. ②First,__it's convenient for them to call their parents, teachers or friends. Second,__they can search what they need on mobile phones. For example, they can look up new words and look through news.③However,__some students disagree. They think using mobile phones at school isa waste of time. Many students spend too much time on games and QQ. Besides, it's unhealthy for the mind and the body, such as hurting eyes, making some bad friends.④In__my__opinion,__students can't use mobile phones at school. It's bad for their health and study.名师点评①开篇点题。

九年级英语上册 Unit 5 Look into Science基础知识过关五 (新版)冀教版

Unit 5 Look into Science单元基础知识过关五1．方法；办法________________2．力量；迫使；强迫________________3．火柴；相称；相配________________4．当然；确定；肯定 ________________5．除非；如果不________________6．两倍(的)；双倍(的)________________7．奇异的；了不起的；极好的________________8．一般的；普遍的________________9．重复；复述；背诵 ________________10．孙子；外孙________________11．孙女；外孙女________________12．指示；说明________________13．正确的；恰当的(adj.)________→(adv.)________14．建议，提议；暗示(v.)________→(n.)________15．发展(n.) ________→(v.)________1．把……翻转；倒过来 ________________2．把……拿开________________3．科学方法 ________________4．用光；用完________________5．由……组成________________6．即使；纵然________________7．引起某人的注意________________8．多达 ________________9．leave for ________________10．in general ________________11．except for ________________12．be related to________________13．billions of ________________14．turn…over________________15．push up________________16．in place________________1．我用水把一个广口瓶装满。

2022九年级英语上册 Unit 5 Look into Science单元话题拓展阅读冀教版

单元话题阅读In some science fiction movies,people in the future have their own robots.These robots are just like humans.They help with the housework and do the most unpleasant jobs.Some scientists believe that there will be such robots in the future.However,they agree it may take hundreds of years.Scientists are now trying to make robots look like people and do the same things as us.Japanese companies have already made robots walk and dance.This kind of robot will also be fun to watch.But robot scientist James White disagrees.He thinks that it will be hard for a robot to do the same things as a person.For example,it’s easy for a child to wake up and know where he or she is.Mr. White thinks that robots won’t be able to do this.But other scientists disagree.They think that robots will be able to talk to people in 25 to 50 years.Robot scientists are not just trying to make robots look like people.For example,there are already robots working in factories.These robots look more like huge arms.They do simple jobs over and over again.People would not like to do such jobs and would get bored.But robots will never get bored.In the future,there will be more robots everywhere,and humans will have less work to do.New robots will have many different shapes.Some will look like humans,and others might look like snakes.After an earthquake,a snake robot could help look for people under buildings.That may not seem possible now,but computers,space rockets and even electric toothbrushes seemed impossible a hundred years ago.We never know what will happen in the future!Is there intelligent(有智力的)life on other planets?For years,scientists said “no.”or“we don’t know.”But today this is changing.Seth Shostak and Alexandra Barnett are astronomers(天文学家).They believe intelligent life exists(存在)somewhere in the universe.They also think we will soon contact these beings(人;生物).Why do Shostak and Barnett think intelligent life exists on other planets?The first reason is time.Scientists believe the universe is about 12 billion years old.“This is long enough for other planets to have intelligent life,”say Shostak and Barnett.The second reason is size—the universe is huge.“Tools like the Hub ble Telescope(哈勃望远镜)have shown that there are at least 100 billion galaxies,” says Shostak.“And our galaxy,the Milky Way,has at least 100 billion stars.Some planets going around these stars might be similar to Earth.”In the past,it was hard to look for signs of intelligent life in the universe.But now,powerful telescopes(高倍望远镜)allow scientists to discover smaller planets—the size of Mars or Earth—in other solar systems.These planets might have intelligent life.Have beings from space already visited Earth?“Probably not,”says Shostak.“It’s a long way away.However,intelligent beings may contact us in other ways ,such as radio signals(信号).In fact,they may be trying to communicate with us now,but we don’t have the right tools to receivetheir messages.However,this is changing.By 2025,we could make contact with other life forms in our universe and we might help each other.”Do animals have a culture? What do we mean by “culture”? Recently social scientists have begun to ask if culture is found just in humans, or if some animals have a culture too. When we speak of culture, we mean a way of life that a group of people have in common. Culture is the forms of behavior (行为) that help people to live together. It is also the forms of behavior that make one group of people different from another group.Human beings use tools, cooperate with one another, and communicate with language. But these aspects (方面) of human behavior, or “culture”, can also be found in the lives of certain animal s.Animals can make tools, for example. We used to think that the ability to use tools was the dividing line between human beings and other animals. Lately, however, we have found that this is not the case. Chimpanzees (黑猩猩) can not only use tools but actually make tools themselves. Animals can also share knowledge with each other and use their own language to communicate. So it may be important for us to know that the line dividing us from animals is not as clear as we used to think.Passage 4Earth Day is a special day to learn about our planet and how to take care of it. On Earth Day, some people listen to speeches about the environment. Others help clean up their offices or save water and electricity at home. Your parents may even decide to take a day off from driving their cars.The idea for Earth Day came from a U.S. senator (参议员), who was worried about the pollution and the health of plants and animals. And the idea quickly caught on. In 1970, the first Earth Day was celebrated. More than 20 million people all over the U.S. took part. Since then, Earth Day has been used to educate people about their role in taking care of our planet.Now, Earth Day has become a global celebration. In 1990, 200 million people from 140 countries took part in clean-ups, tree planting and other environmental events on Earth Day.1 / 1。

冀教版九年级英语上册Unit 5 Look into Science 单元知识点归纳：句子

Unit 5 重点句子解析1. It is strong enough to hold the water.句中的enough to do…意为“足以……做某事”，这里的enough起副词作用，用在形容词或副词后作状语。

Allan is old enough to go to work. 艾伦到上班年龄了。

2. Because about one fifth of the air is made up of oxygen, the water rises and fills about one fifth of the jar.句式be made up of意为“由……组成”，后加名词或代词作介词宾语。

This grade is made up of ten classes. 这个年级是由十个班组成的。

句中的one-fifth意思是“五分之一”，这是一个分数。

分数的表达一般遵循以下规则：分子用基数词，分母用序数词；当分子大于一时，分母要用复数形式；并且其中的连字符号有时可以不要。

one-fourth 四分之一three fifths 五分之三3. Maybe Brian and I can join you after supper.动词join在这里表示“加入”，如果表示“加入到某人的某种活动中”可用句式join somebody in …。

Lisa, can you join us in the game? 丽萨，你能和我们一起做游戏吗？4. Fantastic facts about the butterfly have been drawing Dr. Taylor’s attention.句中的have been drawing 是现在完成进行时，它由“助动词have (has) + been + 现在分词”构成，当主语是第三人称单数时用助动词has，其他情况用助动词have。

现在完成进行时主要表示从过去开始一直持续到现在的动作，这个动作是否延续下去，要根据上下文而定。

1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。

Unit 5 Look into ScienceLesson 29 DNA-The Story of You1. Analysis of the StudentsThe students of Grade 9 have mastered certain vocabularies，expressions and structures. They also have the abilities of self-teaching and working in groups. Most of them are willing to express their opinions in English.2. Analysis of Teaching ContentLesson 28 is the fifth lesson in Unit 5, Book 5.This unit focus on the subject Look into science, also teach the students something about science. Students cares about the subject because it is close to everyone. Lesson 28 mainly talks about DNA, it tell us the character and function of DNA, also understand our body. We are unique in the world.【知识目标】1.To master the words: blueprint, general, complex, twins, pattern, identify, be related to, except for.2. To master the phrases: not only…but also, except for, be related to, billions of.【能力目标】Improve the students’ ability of speaking, listening, reading and writing. Understand the articles about DNA.【情感目标】Know more about the nature, know more about our body. You are unique in the world. 【教学重点】To master the compound sentences.【教学难点】To master the use of DNA.Tape recorder, MultimediaStep 1. Warm-upFree talk: (show the picture of DNA, tell students DNA is short for deoxyribonucleic acid.)Think about it!1. What do you know about DNA?2. What can scientists do with DNA?Step 2. Presentation1.Free talk:(1)Where is it in our body? (Show some pictures of DNA.)(2)What's the function of DNA? (Show some pictures of twins.)2. Explain the new words.3. Read the lesson and answer the questions：(1) What is a blueprint?(2) Which is more complex, building a living thing or building a house?(3) Do some twins have the same DNA?(4) Is it possible to change your DNA?(5) Whose DNA is related to yours?4. Check the answers and underline the key words.5. Listen and follow to the tape.6. Explain the language points:between与amongbetween用于两者之间，among一般指三者或三者以上。

Jack sits between Tim and Bob.Jack坐在Tim和Bob之间。

She was among the crowd.她处在人群中。

use…to do sth. 用……做某事She is using a knife to cut vegetables.她正用小刀切蔬菜。

use的形容词是useful.Is the fridge very useful?这台冰箱很有用吗？too与eithertoo与either都表示“也”，其区别是too用于肯定句，表示“也”；either用于否定句，表示“也不”。

他们通常都位于句末，其前用逗号隔开。

He has a baby brother, too.他也有个小弟弟。

He doesn’t have an eraser, either.他也没有橡皮。

own的用法adj. 自己的（用在所有格后面，加强语气）He makes all his own notebooks.她所有的衣服都是自己做的。

vt. 有；拥有Who owns the car?这辆汽车是谁的？owner n. 所有人；物主She is the owner of the house.她是这座房子的主人。

except for除……以外，只是David is a good man except for hot temper.大卫除了脾气暴躁以外，他是个好人。

The classroom is nice except for dirty on the floor.教室除了地板脏以外都很好。

Step 3. Practice1.Read the lesson by themselves.2.Fill in the blanks with the phrases in the box on page 75.in general, except for, not only…but also,related to, even if, the same…as…(1) Your homework is quite good__________ a few spelling mistakes.(2) _________the young_________ the old like pop music.(3) Kate’s hair is_____________ colour _________her sister’s.(4) ________________,women live longer than men.(5) _____________many difficulties remain, we can overcome them.(6) Is wealth______________ happiness?3.Check the answers.4.Ask students: Do you think DNA can change each other? Read again and Complete the passage with the sentences in the box.Changing DNADo you know DNA can be changed? Have you ever seen a pig with a dog’s body? Of course not! Pigs and dogs can’t have babies t ogether._________ But now, scientists can do it. Scientists can take DNA from one kind of animal and put it into another kind of animal. They can design new plants by combining the DNA of other plants. _____________Some scientists are worried. They say we need to know more about DNA before we start changing it.________ But what if the plants are bad for humans, too?A. Their DNA can’t combine.B. We can make plants that are bad for pests.C. They can even combine the DNA of a plant and an animal.5. Check the answers.Step 4. ConsolidationGroup work:Is it a good idea to change the DNA of the food we eat?Some people say doing this makes our food better. Others think it’s too dangerous.1. Discuss the idea of yours.2. Write down your ideas.3. Report you ideas.Step5 Homework1. Listen and read.2. Finish exercises of this lesson.略。