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1、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 doesnt work. I need _ (repair) it. Does your computer need _ (repair)?5. Would you
2、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”.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。 We a
3、ll _ _ Xiao Li.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。 My father and I got home _ _ _ _ yesterday evening.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。 The animals ears _ _ the rabbits.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。 They _ these different parts _.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。 I might _ a dinosaur _ a rabbit. call himat
4、the same timeare/look likeputtogethercombineandThink 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”? What can scientists do with “DNA”?“DNA” is short for deoxyribonucleic acid. di:ksi,raibunju:kli:ik sid
5、 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 motherIdentical twins are two children that grew from the same egg. They have identical DNA. Theyre clones!Lets learn the new words蓝图蓝图 n.一般意义
6、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 generallyindentical twineggcloneidentifynot onlybut alsoListen 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 you
7、r 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 familys DNA. Language notesAre there differences between you and them? 你和他们之间有什么不同吗?【辨析】：between与amongbetween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
8、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useto do sth. 用做某事He is using a knife to cut bread. =He is using a knife for cutting brea
9、d. 他正用小刀切面包。Use your eyes to look and dont 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：Whats 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。
10、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。如：He has a sister, too. 他也有个小妹妹。He doesnt have a knife, either. 他也没有小刀。Except for identical twins, each living thing has its own unique DAN. 除
11、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
12、： 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 m
13、e 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 t
14、o 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
15、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.
16、 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
17、. 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 sam
18、e 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. Shell be back in a minute. A. very soon B. in time C. fast D. quick 3.Excuse me. May I have yo
19、ur 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
20、 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 buil
21、d _(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.identicaltwinsChildrensrelatedhealthyownerdrawing itselfparentsScientists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
22、穿多大号的鞋？你穿多大号的鞋？ _ _ shoes do you wear?2. 我们用蓝图建造房子。我们用蓝图建造房子。 We _ a blueprint _ _ a house.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。 The house is beautiful _ _ the small windows.4. 你的头发和皮肤有同样的你的头发和皮肤有同样的DNA。 Your hair has _ _ _ _ your skin.5. 她不但会唱歌，而且会跳舞。她不但会唱歌，而且会跳舞。 She can _ _ sing _ _ dance.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DNA。 _ _ _ _ its own unique DNA.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。 He went to see a film yesterday evening. _ _ _.What sizeuseto buildexcept forthe same DNA asnot onlybut alsoEach living thing hasSo did I