UNIT 9　HUMAN BIOLOGY Section A　TOPIC TALK & LESSON 1
Ⅰ.单词拼写
1.A team from the UK were the first to successfully     　(克隆) an animal. 
2.I was also in the desert,where,for the first time,I rode a     　(骆驼). 
3.It’s easy to tell a     　(山羊) from a sheep. 
4.The police think the videotape may hold some vital     　(线索) to the identity of the killer. clone
5.Many patients are not getting the medical     　() they need. 
6.You have already made great progress in your     　(生物). 
7.    　(哺乳动物) are animals such as dogs,lions,and whales. 
8.She had to face the fact that her life had changed     　(永远). 
9.It says that better     　(生殖的) health can reduce poverty and build economic growth. 
10.Laughter is one of the most infectious expressions of     　(情感). 
Ⅱ.单句语法填空
1.The     　(edit) of the magazine is a smart young man. 
2.Most people look better under     　(artificially) light than in bright sunlight. 
3.The     　(twin) were separated at birth and brought up in entirely different environments. 
4.It is difficult to make a     　(compare) with her previous book,because they are completely different. 
5.While the two are only days apart in age they seem to belong to     　(whole) different generations. 
6.You’ve done so much work,so we all believe you’re bound     　(pass) the exam. 
7.They agreed to go     　(mere) because they were getting paid for it. 
8.Every day the newspapers tell stories of children worldwide who are     　(abuse). 
9.It’s     　blessing that nobody was in the house at the time. 
10.We can infer     　his expression that he is frustrated. 
Ⅲ.完成句子
1.班上每个同学都有能力通过这次考试。
Every student in the class               　passing the exam. 
2.他们一直在讨论如何突破食品安全技术壁垒。
They have been discussing about how to                     of food safety. 
3.你能临摹出一幅与这幅画一模一样的画吗?
Can you                     of this picture? 
4.和世界上其他地方的人相比,他们生活得相当好。
They were living rather well,    　           people elsewhere in the world. 
5.如果你努力工作,你一定会成功。
If you work hard,you should                     . 
6.明天他是否参加那个舞会,没有人知道。
  　               　he will take part in the ball or not. 
Ⅳ.阅读理解
A
With rapid advances in medical science,cloning is slowly but surely looking like it could be in our near future.However,is it really an option that should be considered as a way to extend human life?
Reproductive cloning may help human families gain children,but there’s also a benefit for
the animal world.It brings hope to people eager for children but unable to have their own or adopt.It can also bring about the recreation of species that have long since died,allowing scientists to fully study the species as a living creature instead of simply looking at images or bones.
Many believe that cloning can be used to replace failing organs.This will reduce the waiting list for organ donations and allow more people to be saved.Not only that,but because the organ is,in fact,your own organ,there would be less chance of rejection.
Cloning could prove helpful in genetic research.Using cloning technologies,genetic researchers would have a better understanding of the composition of genes and the effects of genetic constituents (成分) on human characters.There’s also the possibility of changing genetic constituents in cloned humans,and cloning could help fight genetic diseases.
While the cloning of body organs can help extend human life,it could also cause a lot of malpractice (玩忽职守).Along with the ability to clone desired characters,there could be th
e possibility of people deliberately reproducing undesired characters.This could lead to a rise in malpractices within society.
Cloning involves a process of creating identical genes.As such,there would be a lack of diversity in humankind.Scientists believe this lack of diversity will lower the human race’s ability to adapt.
Whatever your view on cloning may be,studies show that the clone would in fact not be completely identical to the original just as twins are not completely identical.Though they might look alike,twins have different personalities and enjoy different things.The same could be said of clones.Even if technology were created in which your memories and thoughts could be transmitted (传送) to the clone,your clone would still be a different person.
1.What good might reproductive cloning bring?
A.It may help improve human well-being.
B.It could contribute to the rising birthrate.
C.It could help animals survive deadly diseases.

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