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1、_._绝密启封前会宁县第一中学高三上学期第二次月考英语试题第二部分阅读理解(共两节，满分40分)第一节 (共15小题；每小题2分，满分30分)阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。AThe 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
2、 now.Boardman CX Comp This is a cross-country bike, and its 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 les
3、s 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 youd probably have to buy this bike
4、without seeing it. But its 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 XSpecialized Allez ESSpecialized is one of the biggest and most popular brands in cycling, and this is its hugel
5、y popular primary road bike. It comes with solid components from front to back and youll look great out on the road.575, Evans CyclesBoardman 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,
6、 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 dont have to upgrade as quickly as you would with a cheaper bike800, Halfords21.Compared with other bikes, what is the
7、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 tires22. 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
8、CX Comp D. Boardman Road Team Carbon23. 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。BWith r
9、apid 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 theres also a benefit for the animal wo
10、rld.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 cloni
11、ng 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
12、technologies, genetic researchers would have a better understanding of the composition of genes and the effects of genetic constituents (成分) on human characters. Theres also the possibility of changing genetic constituents in cloned humans, and cloning could help fight genetic diseases.While the clo
13、ning 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.Clonin
14、g 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 races ability to adapt. Whatever your view on cloning may be, studies show that the clone would in fact not be completely identic
15、al 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, yo
16、ur clone would still be a different person.24. 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.25. According to the text, cloning can also be used for
