九年级英语what is dna课件

,Lesson 10 What Is DNA?,Fill in each blank with the proper word from the brackets:What is _(big) animal in the world?These oranges are _(juice). Please have some.A horse is a _(help) animal.Look! My computer doesnt work. I need _ (repair) it. Does your computer need _ (repair)?5. Would you mind _(open) the door for me? - No, not all. I have made up my mind _(help) you.6. The boy _(call) Mike was once a thief, but now he _(call) “living Lei Feng”.,juicy,the biggest,helpful,to repair,repairing/to be repaired,opening,to help,called,is called,根据汉语意思完成句子，每空一词：我们都叫他小李。 We all _ _ Xiao Li.2. 昨天晚上我和父亲同时到家。 My father and I got home _ _ _ _ yesterday evening.3. 这个动物的耳朵像兔子的耳朵。 The animals ears _ _ the rabbits.4. 他们把不同的零件放在一起。 They _ these different parts _.5. 我可能会把恐龙和兔子结合起来。 I might _ a dinosaur _ a rabbit.,call him,at the same time,are/look like,put,together,combine,and,A task: Make a new living things! What if you could combine other animals or plants to make something new?Think: What animals or plants would you choose? Why?What would your new animal or plant be like?What would you name your new animal or plant? Why? Write down your ideas. Talk about them with your group. Draw a picture of your new animal or plant. Have fun!,What if , 如果该怎么办/会怎么样？,Think about it!Do you and the students near you look the same? What is the same? Are there differences between you and them?What you know “DNA”? What can scientists do with “DNA”?,“DNA” is short for deoxyribonucleic acid.,What is DNA?What is a blueprint?What are identical twins?What does identical mean?What does identify mean?What do you know about DNA?,Read carefully and answer the following questions:,pattern,Identical twins are two children that grew from the same egg. They have identical DNA. They are clones.,the blueprint of life,the same,to determine( 鉴定),Language notes:,When you were a baby, your body already knew the answers to these questions.,to prep. “的”,2. A blueprint shows where to put all the parts of the house. Its the pattern (that/which) you use to build the house.,the answer to the question the key to the door,3. Except for identical twins, each living thing has its own unique DNA.,except prep. “除之外” 不能用于句首 except for “除(瑕疵)，若无”,Language notes:,Every one of us, _ him, went to the park. I usually go to school by bike _ on rainy day. She is a good girl _ her weak health condition. _ his carelessness, he is a good student.,except,except,except for,Except for,except “除之外” besides “除之外(还有)” but 和except的用法大致相同,除了他以外，我们都去了。 We all went _ him. 除他去以外，我们大家也都去了。 We all went _ him. 盒子里除了一张卡片外，没有任何东西。 There is nothing _ a card in the box.,except,besides,but/except,Language notes:,4. Except for identical twins, each living thing has its own unique DNA. Your DNA is in every part of your body.,each adj. & pron. “每一，每个” 指两个或两个以上 的人或东西，强调个人或个别 every adj. “每一，每个” 只能指三个以上的 数量，强调全体或全部,_ has a book. _ of us has a book. We _ have a computer. _ student has a book. There are a lot of tress on _ side of the street.,Each,Each,each,Each/Every,她认识班级中所有的学生。 She knows _ pupil of the class. 她认识班级中每一个学生。 She knows _ pupil of the class.,every,each,each,Language notes:,5. From your DNA, scientists can identify not only you but also people related to you.,identify v. “确认；鉴别” identical adj. “完全相同的”,not only but also “不但而且” 用来连接 语法结构相同的成分，连接并列的主语时，谓语动词要 用“就近原则”,Not only you but also he _(like) pop music. He can not only sing but also dance. He can speak not only English but also French. You can eat lunch not only at school but also at home.,likes,Language notes:,6. Your mother and father related to you. So are your sisters and brothers.,Tom can speak French. So can Jack. I am a good student. So is she. I watched TV last night. So did Mary. They have finished their homework. So have we.,= Your mother and father related to you. Your sisters and brothers are related to you, too.,Tom cant speak French. Neither can Jack. I am not a good student. Neither is she. I didnt watch TV last night. Neither did Mary. They havent finished their homework. Neither have we.,区别：She is a good teacher. So am I. She is a good teacher. So she is.,Fill in the blanks with proper prepositions or conjunctions:Do you know the answers _ the questions?DNA is _ a blueprint.You composition is quite good except _ a few spelling mistakes.Are you friends related _ you?Are your arms long _ short?Your bones have the same DNA _ your skin.You have your own DNA, but it repeats the patterns _ your parents DNA. Some health problems come _ your familys DNA. Scientists can look _ these problems in your DNA.,to,like,for,to,or,as,from,from,for,Fill in each blank with the proper word from the brackets:1. This is the _(identify) hotel that we stayed in last year.2. The two babies are _(twin).3. June first is _(child) Day.4. Your brothers are people _(relate) to you.5. We should eat _(health) food.6. Do you know who is the _(own) of the house?7. A blueprint is a _(draw).8. Your body uses this pattern to build _(it).9. You have your own DNA, but it repeats the patterns from your _(parent) DNA. 10. Some health problems come from your familys DNA. _(science) can look for these problems in your DNA.,identical,twins,Childrens,related,healthy,owner,drawing,itself,parents,Scientists,同义句转换，每空一词：1. Both he and she are coming to the party. _ _ he _ _ she _ coming to the party.2. Tom draws well. Linda draws well, too. Tom draws well. _ _ _.3.Dads eyes are not very big. Mine are not very big, either. Dads eyes are not very big. _ _ _.4. Sometimes they can help you before you fall ill. Sometimes they can help you before you _ ill.5. Lucy is as old as Lily. Lucy has _ _ age as Lily.6. We all went to the park, but Jenny didnt go. We all went to the park _ Jenny.7. John is from Canada. John _ from Canada.,Not only,So does Linda,but also,is,Neither are mine,become,the same,except/but,comes,根据汉语意思完成句子，每空一词：你穿多大号的鞋？ _ _ shoe