Before You Read
1.Do you often travel？Have you traveled in the jungle？
2.What should you prepare before you travel in the jungle？Why？
3.Have you heard dolly？Do you know more about clone？Talk about your own opinion.
4.Do you think clone is good or not？Why？
5.If you were to have one day to live，would you want to clone yourself？Why？
Reading 1
Traveling in the Jungle
Jungle country is not friendly to man，but it is possible to survive there.You must have the right equipment and you must know a few important things about woodcraft.Then your chances of staying alive are very good.
（旁注：jungle［'dʒʌŋg（ə）l］）
（旁注：n.丛林；危险地带）
（旁注：survive［sə'vaɪv］）
（旁注：v.幸存；生还；幸免于）
（旁注：equipment［ɪ'kwɪpm（ə）nt］）
（旁注：n.设备；装备；器材）
（旁注：woodcraft［'wudkrɑ:ft］）
（旁注：n.木工技术；森林知识）
No one should go into the jungle without the right equipment.You need lightweight clothing，a good knife，and a compass.Fishhooks and a line，a rifle and ammunition，matches in a waterproof container are necessary too.So is a mosquito net to protect the head.
（旁注：compass［'kʌmpəs］）
（旁注：n.指南针；罗盘；圆规）
（旁注：rifle［'raɪf（ə）l］）
（旁注：n.步枪；来复枪）
（旁注：ammunition）
（旁注：［æmju'nɪʃ（ə）n］）
（旁注：n.弹药；军火）
（旁注：waterproof［'wɔ:təpruəf］）
（旁注：adj.防水的）
（旁注：mosquito［mɒ'skɪ:təu］）
（旁注：n.蚊子）
In the jungle you can get hopelessly lost within five minutes after leaving a known landmark.That is why you should always carry a compass.In open country，during the day，you can tell which way to go by studying the sun.At night the stars are sure guides to direction.But in most places the jungle rooftop is so thick that it is impossible to see the sun or the stars.Again and again you must check your position by compass.
（旁注：hopelessly［'hoplɪslɪ］）
（旁注：adv.绝望地；无望地）
Keep watchful.Watch the ground in front of you carefully.Stop and listen now and again.Avoid haste，and rest often.A steady，even pace is wisest in the long run.
（旁注：haste［heɪst］）
（旁注：n.匆忙；急忙；轻率）
If you lose your way，don't be scared.Try to decide how long it has been since you were sure of your position.Mark the spot where you are on a tree.Put the marks on four sides of the tree，so that you will be able to see them from any direction.
（旁注：scared［skeəd］）
（旁注：adj.害怕的）
Except in an emergency，never try to travel through the jungle at night.
（旁注：emergency［ɪ'mɜ:dʒ（ə）nsɪ］）
（旁注：n.紧急情况；突发事件；）
（旁注：非常时刻）
Whenever possible，it is wise to follow streams and rivers that are going in your general direction.This may cause you many extra miles of travel.But in the end it will save time and energy.
（旁注：energy［'enədʒɪ］）
（旁注：n.［物］能量；精力；活力）
If a river is broad and deep and has no rapids，rafting is the best means of travel.Bamboo grows along the banks of many jungle streams.Since it is hollow and extremely strong，it makes a perfect raft.
If possible，stay away from high ridges when you are traveling through jungle country.
（旁注：rapids［'ræpɪdz］）
（旁注：n.急流）
（旁注：raft［rɑ:ft］）
（旁注：n.筏；救生艇）
（旁注：ridge［rɪdʒ］）
（旁注：n.山脊；山脉；屋脊）
Mosquitoes will be with you all the time.The only defense against them is to wear the right kind of clothing.Your trousers must be lightweight and long.The legs of the trousers should be tucked into your boot tops.
（旁注：defense［dɪ'fens］）
（旁注：n.防卫，防护；防御措施）
Finding water that is safe to drink can be a problem.Many clear and fresh-looking streams and rivers carry germs that can be deadly to man.Streams found near native villages are always dangerous，even if they are clear and fresh-looking.Such water must always be boiled before you drink it.
（旁注：tuck［tʌk］）
（旁注：v.卷起；挤进；裹住）
（旁注：germ［dʒə:m］）
Luckily，the jungle has many kinds of plants and vines that give water.The big rough-barked vines called lianas are one of the best sources of water.A section several feet long should give you more than a cup of clear water.Water from almost all plants is pure enough to drink.But stay away from vines that have bitter or milky juice.
（旁注：n.［植］胚芽，萌芽；细菌）
（旁注：vine［vaɪn］）
（旁注：n.藤；葡萄树；藤本植物）
（旁注：liana［lɪ'ɑ:nə］）
（旁注：n.［植］藤本植物）
（旁注：bitter［'bɪtə］）
（旁注：adj.苦的；痛苦的；尖刻的）
（旁注：milky［'mɪlkɪ］）
（旁注：adj.乳白色的；牛奶的）
Many jungle plants also provide food.Before you go into the jungle，learn to recognize the varieties of plants that can be eaten.If you haven't had a chance to do this，watch what kinds of fruits and nuts the birds and monkeys choose.Such food is almost always safe for a man to eat.
（旁注：recognize［'rekəgnaɪz］）
（旁注：v.认出，识别；承认）
Surviving in the jungle is a science.The jungle people have become perfect in this science，and you can，too.Learn as much as you can about what to expect in the jungle.Make sure you have the right equipment.
Language Focus
1.be friendly to：对……友好/友善
e.g.:I hope Bill Clinton will keep his words and be friendly to the Chinese people.
我希望比尔·克林顿能遵守其诺言，与中国人民和睦相处。
She was polite and friendly to everyone.
她对每个人都礼貌而友善。
2....but it is possible to survive there.
—但是在那里生存下去是有可能的。
*句中it is possible to do表示“干什么事是可能的”。
e.g.:It is possible to finish the task in two hours.
两小时内完成任务是可能的。
It is possible to reach the destination in five minutes.
五分钟内到达目的地是可能的。
3.Then your chances of staying alive are very good.
这样你在丛林里幸存的可能性就很大。
chance：可能性；机会
e.g.:There was really very little chance that Ben would ever have led a normal life.
那时本几乎不可能过上正常的生活。
Most refugee doctors never get the chance to practice medicine in our hospitals.
4.No one should go into the jungle without the right equipment.
进入丛林中的人都应该有合适的设备。
*句中No one...without...双重否定表肯定。
e.g.:No one can enter the room without permission.
未经允许任何人都不能进入房间。
No one can succeed without effort.
只有努力才能成功。
5.lose one's way：迷路，走失
e.g.:It's easy to lose your（one's）way in Venice.
在威尼斯很容易迷路。
Don't lose your way when you travel in France.
法国旅行时你不要走丢了。
6.Learn as much as you can about what to expect in the jungle.
尽可能多的了解在丛林中生存需要什么。
as much as：差不多；尽可能多
e.g.:We want to succeed and do well just as much as you want us to.
我们想要获得成功，我们想要尽量表现得就像你想要的那样好。
In fact it cost me as much as 100 dollars.
事实上，它花了我整整100美元。
Reading Comprehension
Decide whether the following statements are true or false.Write“T”for True and“F”for False.
1.Jungle country is friendly to man.（ ）
2.You must know a few important things about woodcraft before you travel in the jungle.（ ）
3.No one should go into the jungle without the right equipment.（ ）
4.In the jungle you cannot get lost within five minutes after leaving a known landmark.（ ）
5.Except in an emergency，never try to travel through the jungle at night.（ ）
6.When you travel in the jungle，a steady，even pace is wisest in the long run.（ ）
7.What kinds of fruits and nuts the birds and monkeys choose is safe for a man to eat.（ ）
8.Streams found near native villages are always safe if they are clear and fresh-looking.（ ）
9.Many jungle plants cannot provide you with food.（ ）
10.Surviving in the jungle is so easy that you don't need to learn.（ ）
Reading 2
What Is Cloning？
Cloning is the most attractive story of the new bio-technologies and the one which causes the most heated discussion over its worth.Here are answers to the most common questions about cloning.
（旁注：attractive［ə'træktɪv］）
（旁注：adj.吸引人的；有魅力的）
（旁注：biotechnology）
（旁注：［.baɪə（u）tek'nɒlədʒɪ］）
（旁注：n.［生物］生物技术）
What is cloning？
Cloning is the creation of cells or whole animals using DNA〔1〕from a single“parent”，by passing the normal reproductive process.The clone has the same DNA to the parent.
（旁注：reproductive）
（旁注：［.rɪ:prə'dʌktɪv］）
（旁注：adj.生殖的；再生的）
Is cloning unnatural？
No.Clones are always produced by natural means in the shape of identical twins.
（旁注：identical［aɪ'dentɪk（ə）l］）
（旁注：adj.同一的；完全相同的）
How are clones created？
The most common process takes DNA from one cell and puts in a hollowed-out egg.Chemicals and electricity are then used to encourage the new DNA to fuse with the egg and develop into an embryo.This technique is called nuclear transfer〔2〕.
（旁注：hollow［'hɒləu］）
（旁注：v.挖空；挖出）
（旁注：transfer［træns'fɜ:］）
（旁注：n.转让；转移；传递；过户）
Why was Dolly important？
（旁注：mammal［'mæm（ə）l］）
（旁注：n.哺乳动物）
（旁注：previously［'prɪ:vɪəslɪ］）
（旁注：adj.以前的；早先的）
（旁注：potential［pə'tenʃl］）
（旁注：adj.潜在的；可能的）
The sheep was the first mammal to be cloned using DNA taken from an adult cell.Previously，animals had only been cloned using embryo cells which already have the potential to become a complete embryo in its own right.The big breakthrough with Dolly was to make a clone from an ordinary，adult cell in this case from a female goat's udder.
Could a human clone be born soon？
In theory，yes.The techniques used to create Dolly could be applied to humans.But the technology of reproductive cloning is still in its very early stages and there is much that scientists do not understand.It took more than 200 attempts to make Dolly.The other embryos failed to implant in the surrogate mother or miscarried.Even if a clone makes it to birth，at present，it has a very low chance of surviving into adult life.
（旁注：embryo［'embrɪəu］）
（旁注：n.［胚］胚胎；胚芽；初期）
（旁注：attempt［ə'tem（p）t］）
（旁注：n.企图；攻击）
（旁注：implant［ɪm'plɑ:nt］）
（旁注：v.种植；灌输；嵌入）
（旁注：surrogate［'sʌrəgət］）
（旁注：adj.代理的；替代的）
Has anyone said they will make live human clones？
A number of people have，including Chicago〔3〕physicist Dr.Richard Seed.〔4〕However，few experts believe that these people have the skills to succeed.
Are there any benefits from cloning？
Yes.The techniques used have already demonstrated benefits.Polly，another sheep clone at the Roslin Institute in Edinburgh〔5〕has had a human gene inserted so that it produces a blood clotting agent needed by hemophiliacs in its milk.Cloning of human cells in a laboratory could offer perfectly-matched tissue for surgical or genetic repair of human.
（旁注：demonstrate）
（旁注：［'demənstreɪt］）
（旁注：v.证明；展示；论证）
（旁注：clot［klɒt］）
（旁注：n.凝血；结块）
（旁注：hemophiliac）
（旁注：［.hɪ:mə'fɪlɪæk］）
（旁注：n.血友病患者）
（旁注：surgical［'sɜ:dʒɪk（ə）l］）
（旁注：adj.外科的；手术上的）
（旁注：genetic［dʒɪ'netɪk］）
（旁注：adj.遗传的；基因的）
Where does the law stand on live human clones？
In the UK，human cloning is already banned by law.President Bill Clinton〔6〕has proposed banning research into producing human clones in the US for five years.Some measures have also been made to establish international agreements banning live human clones.
Language Focus
1.in the shape of：以……的形式；呈……的形状
e.g.:A witch was supposed to take the shape of a cat.
据说女巫能化为猫的形状。
On the hillside was a rock in the shape of a human head.
山坡上有一块岩石，形状像人的头。
2.The sheep was the first mammal to be cloned using DNA taken from an adult cell.
多利是第一只利用体细胞的DNA克隆出的绵羊。
to be cloned：不定式作后置定语，using现在分词在这里引导伴随状语。
e.g.:The task to be finished is very difficult for us.
将要完成的任务对我们而言是非常困难的。
Please write a short passage using the following phrases.
请用下面所给的短语写一篇短文。
3.be applied to：适用于；应用于
e.g.:Applied to the skin，ginger stimulates and dilates the blood capillaries.
把姜贴在皮肤上能刺激和扩张毛细血管。
This rule can not be applied to every case.
这条规则并不是在任何情况下都适用。
4.It took more than 200 attempts to make Dolly.
他们做了200多次尝试才创造出多利。
*It takes time/money to do sth.花费时间或金钱做某事
e.g.:It takes us three hours to finish this task.
完成这项任务花费了我们3个小时。
*sb spend time/money on sth./in doing sth.某人花费时间或金钱做某事
e.g.:He spent one hour in finishing his homework.
他完成作业用了1小时。
*sth.costs money某物价值多少钱
e.g.:This coat costs 300 dollars.
这件大衣价值300美元。
5.The other embryos failed to implant in the surrogate mother or miscarried.
其他胚胎不能植入代孕母体或流产。
fail to：未能
e.g.:We fail to preach down the people.
我们未能当众说服这些人。
What is it if we fail to see you when you are with us？
当您和我们在一起，我们却见不到您，会怎样？
6.Even if a clone makes it to birth，at present，it has a very low chance of surviving into adult life.
即使克隆技术赋予多利生命，但是现在它生存很久的机会还很小。
*even if引导让步状语表示“即使……”
e.g.:Even if it rains，I have to go out.
即使天下雨，我也不得不出去。
Even if she is wrong，you shouldn't have punished her.
即使她错了，你也不应该惩罚她。
7.In the UK，human cloning is already banned by law.
在英国，法律禁止人类克隆。
ban v.禁止，取缔
e.g.:Canada will ban smoking in all offices later this year.
加拿大将于今年晚些时候禁止所有办公场所吸烟。
Reading Comprehension
Make the best choice according to what you have read.
1.Cloning is the most attractive story of the new______.
A.biotechnologies B.physics
C.chemical technology D.None of the above.
2.What is cloning？
A.Cloning is the creation of cells or whole animals using DNA not only from a single“parent”.
B.Cloning is not the creation of cells or whole animals using DNA from a single parent”.
C.Cloning is the creation of cells or whole animals using DNA from a single“parent”.
D.All of the above.
3.Is cloning unnatural？
A.Yes，it is.B.No，it isn't.C.Yes，it isn't.D.No，it is.
4.Which of the following statements is Not true according to the passage？
A.Dolly was the first mammal to be cloned using DNA taken from an adult cell.
B.Dolly was not the first mammal to be cloned using DNA taken from an adult cell.
C.Dolly was very important for cloning.
D.The big breakthrough with Dolly was to make a clone from an ordinary，adult cell in this case from a female goat's udder.
5.Could a human clone be born soon？
A.In reality，yes.B.In theory，no.
C.In theory，yes.D.None of the above.
6.It took more than______attempts to make Dolly.
A.500 B.400 C.300 D.200
7.Which of the following statements is true according to the passage？
A.Even if a clone makes it to birth，at present，it has a low chance of surviving into adult life.
B.Even if a clone makes it to birth，at present，it has a high chance of surviving into adult life.
C.Even if a clone makes it to birth，at present，it has no chance of surviving into adult life.
D.None of the above.
8.What benefits are there from cloning？
A.The techniques used have already demonstrated many benefits for human.
B.Polly，another sheep clone has had a human gene inserted so that it produces a blood clotting agent needed by hemophiliacs in its milk.
C.Cloning of human cells in a laboratory could offer perfectly-matched tissue for surgical or genetic repair of human.
D.All of the above.
9.Where does the law stand on live human clones according the passage？
A.China.B.UK.C.Japan.D.France.
10.In your opinion，what is the author's attitude toward cloning？
A.Approval.B.Disapproval.C.Indifferent.D.None of the above.