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 the 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.
D. It may enable scientists to better study extinct species.
2.According to the text, cloning can also be used for .
A. organ transplant
B. solving the aging problem
C. infectious disease treatment
D. constructing a gene database
3.What's one problem cloning may cause?
A. Great diversity.
B. Individual security risk.
C. Increased improper conduct.
D. Serious personality disorder.
4.Why are twins mentioned in the last paragraph?
A. To stress twins' similarities.
B. To show twins are quite common.
C. To carry out deeper research on twins.
D. To better illustrate what a clone will be like.
The best bikes for the beginners
When it comes to purchasing your first bike, the choice is endless, making it tough to know what to go for. Here are the best buys on the market right now.
Boardman CX Comp
This is a cross-country bike, and it’s so versatile(多用途的)that you can handle any terrain(地势)on it, making it a great choice for those wanting to try various cycling subjects. If you leave on the thick tires it comes with, it can ride on various paths and can even handle some less demanding mountain bike routes. Alternatively, put on thin, slick tires and treat it as a road bike. It has basket and comes with Shimano Sora gears, which are outstanding for its price.
￡650, Halfords.
Planet X RT-58 v2
Planet X is based in Yorkshire, which means you'd probably have to buy this bike without seeing it. But it’s worth it, because this is an excellent machine at a lower price. Planet X is a highly rated manufacture and this model comes with Shimano Sora gears.
￡439, Planet X
Specialized Allez ES
Specialized is one of the biggest and most popular brands in cycling, and this is its hugely popular primary road bike. It comes with solid components from front to back and you'll look great out on the road.
￡575, Evans Cycles
Boardman Road Team Carbon
If you can push your budget further still, this bike is worth the extra investment. The frame is made entirely from carbon, which is lighter, faster and more comfortable than the composition metal models above and gives you an all-round more enjoyable ride. It also means that if you get really serious about cycling, you don't have to upgrade as quickly as you would with a cheaper bike
￡800, Halfords
1.Compared with other bikes, what is the strength of the Boardman CX Comp?
A. Its outstanding price B. Its Shimano Sora gears
C. Dealing with any terrain D. Putting on very firm tires
2.Which is suitable for you if you want to buy at an economical price but with Shimano Sora gears?
A. Planet X RT-58 v2 B. Specialized Allez ES
C. Boardman CX Comp D. Boardman Road Team Carbon
3.What can we know about the bikes mentioned in the text?
A. The second has sold out so fast.
B. You should be careful when riding the third.
C. The forth is very expensive but with special material.
D. You can only ride the first on the mountainous road。
圣诞将至，英语俱乐部成员计划举办晚会。假如你是李华，给外教Andrew写封邮件，邀请他参加。内容包括：
1.地点：餐厅二楼；
2.时间：12月24号7点开始，9点结束；
3.邀请外教致辞；
4.晚会活动方式。
注意： 1. 词数100左右； 2. 可以适当增加细节，使行文连贯。
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假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号()，并在其下面写出该加的词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：
1、每处错误及其修改均仅限一词；
2、只允许修改l0处，多者(从第11处起)不计分。
If you are on the street，you would see all kinds of people passing by．It’s not rare to see people with bad manner．Some throw away rubbish casually．Some spits in public．Some even sit or lie on the ground without consider others’ feelings．All these behaviors really make us feel bad．
Personal，smoking in public places annoys me most．As we all know it，smoking does harm for people’s health．It is not only bad for smokers himself，but also a threat to the public health．It is hoped that an effective way can found to educate these people to behave good in public．
Cheating by using the work of others is the same as ruining your life 1. drugs. It is not only 2.（necessary）and foolish, it can also start to be addicted in many ways. If a student constantly cheats, then it may become a habit in the future. Besides, no one needs to cheat. We all have brains that we can use and also teachers, parents, and friendrs to help 3. (we). Anyway, it’s not like we will succeed in life if we continuously cheat. There is no need 4. (ruin) both your education and your life by cheating.
5. (cheat) usually suffer many consequences. In the beginning when the student is in grade school, cheating may only lead to 6. (lose) credit and going to the principal’s office. In middle school, there will be Saturday punishments, suspensions, and even parent-teacher conferences. But in high school, college, and the rest of a person’s life, it is absolutely unlikely that cheating 7. (tolerate).
Of all things, taking credit for others’ work is not only unnecessary but quite unreasonable as well. If we all just do our work, then there is no point in cheating. We should make 8. effort for our education instead of taking the easy way out. But most importantly, 9. we all work hard instead of cheating, then everyone will live a 10. (success) life.
I lifted my wet woollen gloves to my face and wiped the snowflakes from my eyes. I could not feel my nose and my ______ formed a thick fog in the air. The biting wind was making me ____ I was fed up! I didn’t want to be here. I wanted to go home. But Mum and Dad had ____ me to go for a Sunday afternoon walk in the park. I could see my ______ in the snowy path, like a trail of breadcrumbs(一串面包屑) in the forest showing me the way _______. I stopped and listened to my _______. I could ______ the wind crying like a homeless dog hungry for a delicious ______. The once-green tree _______， which used to wave gently in the breeze, had become bare, and the grass was covered with a ________ blanket of fresh snow. Then I saw a broken spider’s web shining golden beneath a pale sun. My breath was like silky soft _____ floating up into the freezing cold air.
Suddenly there was Mum，_______ handing me a big cup of hot chocolate. Her big smile immediately _______ my heart.
“Here you are, Jo. This will keep you _______，”she said as she placed a comforting arm around my shoulders and _______ her cheek against mine.
I slowly took a mouthful of the hot _______ and felt it slowly dripping down my throat like lava(熔岩) ______down a mountainside. My wet woollen gloves were now warm, not ____. My breath warmed, and I was _______fed up or cold. I was happy and ______.
1.A. sweat B. words C. tears D. breath
2.A. cold B. thirsty C. hungry D. tired
3.A. needed B. forbidden C. allowed D. forced
4.A. shadow B. image C. footprints D. shoes
5.A. up B. inside C. there D. home
6.A. whispers B. surrounding C. heartbeat D. mind
7.A. hear B. feel C. see D. smell
8.A. chocolate B. bone C. drink D. snowball
9.A. roots B. leaves C. trunks D. branches
10.A. white B. shabby C. plain D. colorful
11.A. ice B. smoke C. rain D. light
12.A. finally B. unwillingly C. gradually D. cheerfully
13.A. broke B. impressed C. melted D. stopped
14.A. calm B. alive C. awake D. warm
15.A. pressed B. felt C. dropped D. raised
16.A. soup B. meal C. liquid D. cup
17.A. jumping B. walking C. flowin D. squeezing
18.A. frozen B. abandoned C. damaged D. worn
19.A. either B. no longer C. no less D. sometimes
20.A. surprised B. warm-hearted C. determine D. contented
