1、Unit 2Section 请同学们认真完成练案4.语境填词A)根据汉语或首字母提示，写出所缺单词1Most schools undertake (从事) programs of group or individual educational support.2Many people o bject to experimentation on animals.3. Sports account for a growing amount of income made on the sales of commercial (商业的) time by television.4When they le
2、ave school, they will be equipped for obtaining (获得) office jobs.5He has been f orbidden to take part in competitions for a year，because he took drugs.B)在空白处填入适当的内容(1个单词)或所提供单词的正确形式6Having a good teacher has made a difference (different) to Alex.7What you did wasnt illegal, but it was morally (moral
3、) wrong.8I have two pens. One is black；the other is red.9Work hard and your efforts will pay off sooner or later.10Most of the students are studying attentively， while John is playing with a paper plane.完成句子1He has accumulated a lot of teaching experience during the past 10 years.在过去的10年中，他积累了大量的教学经
4、验。2We have a strong belief that we will win the war .我们对能赢得战争抱有坚定的信念。3They wonder whether the new policy can bring benefit to them.他们想知道新政策是否会给他们带来好处。4In came the teacher and the lesson began.老师进来了，然后开始上课了。5Please dont talk so loudly while others are working .别人在工作时，请不要大声喧哗。 .完形填空Human cloning techn
5、ology could be used to reverse heart attacks 1.D .Scientists believe that they may be able to treat heart attack victims by 2.A their healthy heart cells and injecting them into the areas of the heart that have been damaged, and other problems may be solved 3.B human cloning and its technology are n
6、ot 4.B .With cloning, 5.C couples could have children.Current treatments for infertility (不孕症), in terms of percentages, are not very 6.B .Couples go through physically and emotionally painful procedures for a small 7.B of having children.Many 8.D run out of time and money without successfully havin
7、g children.Human cloning could make it 9.A for many more infertile couples to have children than ever before.We should be able to clone the bone marrow for children and adults 10.C from leukemia (白血病)This is expected to be one of the first 11.A to come from cloning technology.We may learn how to swi
8、tch cells on and off through cloning and thus be able to 12.C cancer.Cloning technology can be used to test for and perhaps cure generelated 13.D .The above is just a few examples of what human cloning technology can do for mankind.This 14.C technology promises unprecedented (史无前例的) advancement in m
9、edicine if people will 15.C their fears and let the benefits begin.文章大意：本文主要介绍克隆技术在医学方面的重大意义。1Aidentically Bexactly Ccommercially Dthoroughly解析：根据下文内容，以及对比四个选项，显然D项最符合文意。thoroughly意为“彻底地、完全地”。2AcloningBimitating CchasingDcontrolling解析：根据首句Human cloning technology could be used to reverse heart attac
10、ks.可知选A。属于原词复现。3AwhereBif Cbecause Dalthough解析：根据前后逻辑关系可知，此处指条件，故选B最佳。4Arefused Bforbidden CcontrastedDencouraged解析：由空前的other problems may be solved if human cloning and its technology are not可知，很多问题也能够被解决，如果克隆技术不被禁止的话。或者由常识也可知，目前克隆技术是被禁止使用的。故选B符合语境。5Anonviolent Birresponsible CinfertileDincredible解
11、析：根据下一句Current treatments for infertility可知选C。属于同源词复现。6Aimaginative Bsuccessful CbeneficialDidentical解析：根据下文Many couples run out of time and money without successfully having children.可推知，目前对不孕症的治疗并不是很成功。属于同源词复现，故选B符合语境。7Afear Bchance CsenseDregret解析：根据空后的having children可知，此处是指不孕的夫妇经受身体上和情感上的痛苦过程，仅仅
12、是为了很小的机会能拥有孩子。a small chance of意为“很少可能、很小的机会”。斟酌四个选项，只有B最符合语境。8Aparents Bpatients Cdoctors Dcouples解析：根据本句后面的having children可推知答案选D。9Apossible Bright CmemorableDpositive解析：由前文for a small 7 of having children可知不孕夫妇几乎没有机会能要小孩。根据空前的Human cloning could make it可知，克隆技术能解决这个问题，让不孕夫妇有小孩比以往任何时候都更加有可能。故选A项最符合
13、上下文逻辑。10Adiffering Bresulting CsufferingDseparating解析：显然此处是指患上白血病的小孩和成年人。固定搭配suffer from在此意为“患上(疾病)”，故选C。11AbenefitsBagreements Cadvantages Dcharacteristics解析：根据文章尾段最后一句中的let the benefits begin可知此处指治疗不孕有望是来自克隆技术的第一个好处之一。文章讲到了克隆技术在医学上的多种好处，这只是其中之一，下文还有。故此题选A项最佳。属于原词复现。12Acombine Bspread CcureDrescue解
14、析：由空后的cancer可知，此处理应是指治愈癌症。故选C正确。13AconditionsBoperations CsymptomsDdiseases解析：斟酌四个选项，并结合空前的Cloning technology can be used to test for and perhaps cure可知此处是推测克隆技术也许能够治愈与基因相关的癌症。根据目前的医学技术，很多癌症是很难治愈的疾病，故选D。14Amoral Breasonable CnewDconservative解析：根据本句后面的内容if people will 15 their fears and let the benef
15、its begin不难推知，克隆技术到目前为止还是一种新的技术，有待科学家进一步探讨。故答案选C最合适。15AincreaseBtreat CreleaseDsacrifice解析：根据生活常识可知，很多人对克隆技术心怀恐惧和害怕，认为这种技术会破坏社会的正常秩序。但从文章讲到的克隆技术的种种好处看来，作者认为只要人们释放心中的恐惧和正确开发利用克隆技术，这会是医学领域上史无前例的进步。故此题选C最佳。.阅读理解Research advances over the past decade have told us that, with a little work, we humans can
16、clone just about anything we want, from frogs to monkeys and probably even ourselves!So, we can clone things, but why would we want to?Of all the reasons, cloning for medical purposes most probably benefit large numbers of people.How might cloning be used in medicine?1Cloning animal models of diseas
17、eMuch of what researchers learn about human disease comes from studying animal models such as mice.Often, animal models are genetically engineered to carry diseasecausing mutations (变异) in their genes.Creating these transgenic (转基因的) animals is a process that requires trialanderror and several gener
18、ations of breeding (培育)Cloning technologies might reduce the time needed to make a transgenic animal model, and the result would be a population of genetically identical animals for study.2Cloning stem cells (干细胞) for the treatment of diseasesStem cells are the bodys building blocks, responsible for
19、 developing and repairing the body throughout life.As a result, they might be used to repair damaged or diseased organs and tissues.Researchers are currently looking up cloning as a way to create certain human stem cells for the treatment of diseases.3Cloning farm animals for drug productionFarm ani
20、mals such as cows, sheep and goats are currently being genetically engineered to produce drugs or proteins that are useful in medicine.Just like creating animal models of disease, cloning might be a faster way to produce large numbers of genetically engineered animals.文章大意：本文主要介绍了克隆技术在医学上的用处。1It can
21、 be learned from the second purpose that cloning technologies can be mainly used to B .Acreate damaged or diseased organs and tissuesBclone genetically defined human stem cellsCdevelop and maintain the body Drepair the body throughout life解析：推理判断题。由第五段“Researchers are currently looking up cloning as
22、 a way to create certain human stem cells for the treatment of diseases”可推断出。2According to the third purpose, cloning technologies can be mainly used to A .Aspeed up the producing of genetically engineered animals Bproduce drugs or proteins that are useful in medicineCraise genetically engineered co
23、ws, sheep and goatsDproduce large herds of animals for human beings解析：事实细节题。由第六段“Just like creating animal models of disease, cloning might be a faster way to produce large numbers of genetically engineered animals.”可知是A答案。3Which of the following statements is true according to the passage？ D AWe ca
24、n clone ourselves easily.BCloning is just helpful in medical field.Ccloning is the fastest way to produce large numbers of genetically engineered animals.DCloning for medical purposes most probably benefit large numbers of people.解析：事实细节题。由第三段“Of all the reasons, cloning for medical purposes most pr
25、obably benefit large numbers of people.”这句话可知。4What is the main idea of the passage？ C ACloning.Bthe use of cloning.Cthe use of cloning in medicine.DCloning farm animals for drug production.解析：主旨大意题。通读全文可知，本文主要介绍了克隆在医学上的用处。.七选五根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余项。We all know by now that exercise
26、is great for you. But lets be honest, sometimes finding that motivation to work out can be a little difficult. Here I am going to share my top reasons for working out.Exercise can completely change your feeling. When you work out, your body produces endorphine, which will give you a rush of happines
27、s. 1.D Next time youre having a bad day, try going for a fastpaced run or taking a spinning class, and the day wont seem so bad after all.Exercise helps you become sociable. Whenever I move to a new city to study or work, I look for exercise classes, where you can always meet likeminded people. 2.C
28、And you all share a collective feeling of happiness when the hard class finishes! 3.A We all know the physical effects of exercise on our bodies but we dont always talk about the mental effects. Exercise might give you belief in yourself from being comfortable with your body and appearance. This new
29、 feeling might even help in your work or social life.Exercise makes you feel strong and fit. 4.G Its a great feeling doing something you couldnt do before and knowing its a result of your hard work.So, next time youre feeling down, put your trainers on and get sweating. It might not be easy in the b
30、eginning for most people. 5.F AExercise makes you feel confident.BExercise helps you reduce stress and anxiety.CYou can support each other during a difficult workout.DYou will feel better after a workout than you did before it.EYou can get to know each other well and make close friends.FBut I promis
31、e you will feel much better once youve finished!GRunning 30 minutes every day helps you keep healthy and makes you feel a sense of achievement.文章大意：本文是一篇说明文。主题语境是“人与自我”。众所周知，锻炼对人有益，然而还是有很多人没有动力坚持这件事，本文讲述了锻炼身体在多个方面的益处以激励人们去运动。解析：1考查细节支撑句。本段的主题是“锻炼能完全改变你的心情”，因此这段话的内容与心情有关，依据上一句可知，在锻炼时身体会产生啡肽(endorphin
32、s)，从而能使人感到心情愉悦。所以D项锻炼之后与之前相比心情更好符合语境。2考查承上启下句。本段的主题是“锻炼有助于社交”，依据上下文中的“where you can always meet likeminded people”“you all share a collective feeling of happiness when the hard class finishes”可知，在艰辛的运动课上总能遇到趣味相投的人，C项在艰苦的健身活动中互相支持，符合语境。该题的干扰项是E项，参加课程的目的是健身、锻炼，因此主要目的不是交朋友。3考查段落主旨句。依据下文内容尤其是“Exercise m
33、ight give you belief in yourself from being comfortable”可知，本段内容主要是锻炼能使人更自信。4考查细节支撑句。依据本段首句可知，锻炼使你感到强壮、健康，G项中的“helps you keep healthy”与之对应；又依据下文的“Its a great feeling doing something you couldnt do before”可知，做到了从前没有做到的事是一种很棒的感觉，而G项中的“makes you feel a sense of achievement”与之相符。5考查文章总结句。空前提到“对大多数人来说，一开始(锻炼)可能不会很容易”，本空作为全文的结尾句，必然要再次对锻炼的好处或结果等进行陈述，而且跟空前内容还要形成转折关系，综合分析可知F项符合语境。
