冀教版九年级英语下册Lesson10.ppt

Lesson 10What is DNA?Fill in each blank with the proper word from the brackets:1.What is ___________(big) animal in the world?2.These oranges are __________(juice). Please have some.3.A horse is a __________(help) animal.4.Look! My computer doesn’t work. I need __________ 5. (repair) it. Does your computer need 6. _____________________ (repair)?7.5. – Would you mind __________(open) the door for me?8. -- No, not all. I have made up my mind ______(help) you.9.6. The boy ________(call) Mike was once a thief, but now 10. he __________(call) “living Lei Feng”.juicythe biggesthelpfulto repairrepairing/to be repairedopeningto helpcalledis called根据汉语意思完成句子，每空一词：根据汉语意思完成句子，每空一词：1.我们都叫他小李。

我们都叫他小李2. We all _________ _________ Xiao Li.3.2. 昨天晚上我和父亲同时到家昨天晚上我和父亲同时到家4. My father and I got home _____ ______ _____ _______ 5. yesterday evening.6.3. 这个动物的耳朵像兔子的耳朵这个动物的耳朵像兔子的耳朵7. The animal’s ears ________ _________ the rabbit’s.8.4. 他们把不同的零件放在一起他们把不同的零件放在一起9. They _________ these different parts __________.10.5. 我可能会把恐龙和兔子结合起来我可能会把恐龙和兔子结合起来11. I might _________ a dinosaur _________ a rabbit. call himat the same timeare/look likeputtogethercombineandThink about it!1.Do you and the students near you look the same? What is the same? Are there differences between you and them?2.What you know “DNA”?3. What can scientists do with “DNA”?“DNA” is short for deoxyribonucleic acid. [di:'ɔksi,raibəunju:'kli:ik] ['æsid] DNA is a pattern for your body to build itself.(like a blueprint) •The two girls are twins. Maybe they have the identical DNA. Zhang Liangying looks like her motherIdentical twins are two children that grew from the same egg. They have identical DNA. They’re clones!Let’s learn the new words蓝图蓝图 n.一般意义上的一般意义上的 adj.完全相同的完全相同的 adj.双胞胎之一双胞胎之一 n.卵细胞卵细胞 n.克隆克隆 v,n.确认，鉴别确认，鉴别 v.不但不但……而且而且……•blueprint •generally•indentical •twin•egg•clone•identify•not only…but also…Listen to the tape and answer”T” or “F”1.DNA is the pattern for our body uses to build itself. 2.Each living things has its own, unique DNA. 3.From your DNA , scientists can identify you and people related to you. 4.Our bones do not have the same DNA as our skin. 5.All health problems come from our family’s DNA. Language notes•Are there differences between you and them? 你和他们之间有什么不同吗?•【辨析】：between与among•between常用于两者之间，among一般指三者或三者以上，如果指三个以上的人或物的每两个之间时，仍然要用between。

•Switzerland lies between France, Italy, Australia and Germany. 瑞士位于法国，意大利，奥地利及德国之间•They live among the mountains. 他们住在群山之中•I was among the crowd. 我处在人群中•You use it to build a house.你用它来建造房子•use的用法•use…to do sth. 用……做某事•He is using a knife to cut bread. =He is using a knife for cutting bread. 他正用小刀切面包•Use your eyes to look and don’t use your hands to touch. 用眼睛看而不用手摸•It is no use doing (to do). 做……是无用的（无益的）•【注意】•use的名词和动词同形，但要注意两者的读音/ju:z/是动词的读音，而/ju:s/是名词的读音useful是形容词，它是由名词use加后缀-ful构成的如：•What’s the use of this? 这个有什么用途？•Is the fridge very useful? 这台冰箱很有用吗？•DNA is a pattern, too. DNA也是一种模型。

•too也•too表示“也”时通常置于句末，其前用逗号，其后用句号如：•I have seen the film, too. 我也看过那部电影•【辨析】：too与either•too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，其前用逗号隔开如：•He has a sister, too. 他也有个小妹妹•He doesn’t have a knife, either. 他也没有小刀•Except for identical twins, each living thing has its own unique DAN. 除了每个双胞胎之外，每个生物都有他唯一的DNA•1)except for除……以外，只是•He is a good ma except for hot temper. 除了脾气暴躁外，他是个好人•Your article is quite good except for several spelling mistakes. 你的文章很好，只是有几处拼写错误•2)【辨析】：every与each•every与each都可与单数名词连用，且意义相近，表示“每个”，然而every与each并不完全一样，every强调整体概念，each则表示个体概念。

•如果不特别强调某一意义时，every和each可以互换如：•We want every child to succeed. 我们希望每个孩子都成功•Each child will find his own road to success. 每个孩子都会找到他个人的成功之路•each可以指两个或两个以上的人或东西，every却不能指两个，只能指三个以上的数量如：•Each side of the road has some trees. 街道两边有许多树不能说every side）•另外，如有其它限定词同时修饰中心词，each可作代词用each of的形式，而every则只能用限定词如：•Each of my parents gave me presents for Christmas. 过圣诞节是我父母每人都给了我礼物•3)own的用法•adj. 自己的（用在所有格后面，加强语气）•She makes all her own clothes. 他所有的衣服都是自己做的•vt. 有；拥有•Who owns the bike? 这辆自行车是谁的？•【友情提示】：•owner n. 所有人；物主•He is the owner of the house. 它是这座房子的主人。

•From your DNA, scientists can identify not only you but also people related to you. 在你的DNA中，科学家们不但能鉴别你，而且也能鉴别和你有关系的人•1)not only …but also…不但……而且……，连接两个相同的成分，也可连接两个分句not only …but also…连接两个并列主语时，谓语动词和后面助于保持一致；•He likes not only English but also math. 他不仅喜欢英语，而且喜欢数学•Not only you but also I am a teacher. 不仅你而且我也是一名老师•Not only does he work hard, but also he is very clever. 他不仅工作认真，而且很聪明•2)relate to/ be related to涉及，有关•The story related to the Second World War. 故事讲的是第二次世界大战的事情•The story is related to the Second World War.•Your composition is quite good __a few spelling mistakes. A. except for B. except C. beside D. besides 1.The teacher has given the answers __these questions. A. with B. for C. of D. to 2.Kate hs the __colour of hair __her sister. A. same to B. same as C. identical as D. same with 3.The library opens __9 am to 4 pm during the Spring festival Holidays. A. at B. from C. between D. for 4.From your DNA, scientists can identify you and people __to you . A. related B. relates C. relating D. relate 5.Have you sent your parents an e-mail __them you arrive safely? A. tell B. telling C. told D. tells 6.When I got the news that the ship would sink, I was __frightened __my legs could not move. A. so that B very that C. too that D. too to •Find the answer that has the same or similar meaning as the underlined part. 1.Lucy had a good time at the party yesterday evening. A. met a friend B. enjoyed herself C. went shopping D. got a gift 2.Mary has gone out with her classmate. She’ll be back in a minute. A. very soon B. in time C. fast D. quick 3.Excuse me. May I have your name? A. call B. get C. hear D. know 4.Please ring me up when you come back. A. play with me B. write to me C. give me a call D. give a phone 5.Have you heard from him? A. heard of B. got a letter from C. sent for D. heard about 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 family’s DNA. _________(science) can look for these problems in your DNA.identicaltwinsChildren’srelatedhealthyownerdrawing itselfparents’Scientists根据汉语意思完成句子，每空一词：根据汉语意思完成句子，每空一词：1.你穿多大号的鞋？你穿多大号的鞋？2. _______ _______ shoes do you wear?3.2. 我们用蓝图建造房子。

我们用蓝图建造房子4. We _______ a blueprint ______ _______ a house.5.3. 除了窗子小外这座房子很漂亮除了窗子小外这座房子很漂亮6. The house is beautiful ______ _____ the small windows.7.4. 你的头发和皮肤有同样的你的头发和皮肤有同样的DNA8. Your hair has ______ _______ _______ _____ your skin.9.5. 她不但会唱歌，而且会跳舞她不但会唱歌，而且会跳舞10. She can _____ ______ sing ______ ________ dance.11.6. 每一个生物都有自己独特的每一个生物都有自己独特的DNA12. ______ _______ ______ _______ its own unique DNA.13.7. 昨晚他去看电影了，我也去了昨晚他去看电影了，我也去了14. He went to see a film yesterday evening. ____ ____ ____.What sizeuseto buildexcept forthe same DNA asnot onlybut alsoEach living thing hasSo did I 。