资源描述
Unit 2 Cloning.阅读理解AThere are many ways in which human cloning is expected to benefit mankind.Below is a list that is far from pletion.Dr.Richard Seed,one of the leading proponents (支持者) of human cloning technology,suggests that it may someday be possible to reverse the aging process because of what we learn from cloning.Scientists believe that they may be able to treat heart attack victims by cloning their healthy heart cells and injecting them into the areas of the heart that have been damaged.Heart disease is the number one killer in the United States and several other industrialized countries.There has been a breakthrough in the research on human stem cells.Embryonic (胚胎的) stem cells can be grown to produce organs to repair or replace damaged ones.Skin for burned victims,brain cells for the brain damaged,hearts,lungs,livers,and kidneys could be produced.By bining this technology with human cloning technology it may be possible to produce needed organs for suffering people that will be free of rejection by their immune systems.Conditions such as Alzheimers disease,Parkinsons disease,diabetes,heart failure,and other problems may be made curable if human cloning and its technology are not banned.Despite getting a fair amount of publicity in the news, current treatments for infertility (不生育),in terms of percentages,are not very successful.One estimate is that current infertility treatments are less than 10 percent successful.Couples go through physically and emotionally painful procedures for a small chance of having children.Many couples run out of time and money without successfully having children.Human cloning could make it possible for more infertile couples to have children than ever before.1.The passage mainly deals with.A.the problems with human cloningB.the disadvantages of human cloningC.the advantages of human cloningD.the different ways human cloning is done2.According to Dr.Richard Seed we can use cloning technology.A.to make people look youngerB.to make people live longerC.to cure people of many diseasesD.to produce more animals3.From the passage we can infer that.A.cloning has already been used to treat heart diseases B.we can treat a mans heart disease by cloning others heartsC.most people in industrialized countries suffer from heart diseasesD.more people die of heart diseases than of other diseases in America4.What would be the best headline for the last paragraph? A.With Cloning,Infertile Couples Could Have ChildrenB.Treatment of Infertility Is Not SuccessfulC.Physically and Emotionally Pain of Infertile CouplesD.The News Is Not Telling the Truth5.With an organ cloned from his own stem cells,.A.the patient is more likely to develop other diseasesB.the patients immune systems dont reject the new organC.the patient will be free of rejection by his immune systemsD.the patient will suffer from Alzheimers diseaseB(xx山东寿光现代中学高三开学考试,B)Seven years ago, back in xx,some reports covered a story that the worlds longest railway tunnel was under construction in Switzerland. At that point it had already been under construction for over a decade. It had been voted to be built nearly a quarter of a century ago! The idea to build it could date back to nearly 70 years agoabout as old as some of your grandparents!Yesterday, it was finally ready!Its 35 miles long and runs 7,500 feet beneath the Swiss Alps, a famous mountain range in Switzerland. It even runs under an old tunnel that was there before. It took a total of 17 years to build at a cost of $12 billion.128 million tons of rock were dug. Two million truckloads of earth were removed!The tunnel connects northern and southern Europe. The opening of this runnel was such a big deal that the Germanys leader, Chancellor Angela Merkel, Frances president, Francois Hollande, and Italys prime minister, Matteo Renzi, were all there to celebrate, as was Austrias chancellor Christian Kern.Its called the Gotthard Base Tunnel.Eventually,325 freight and passenger trains will go through the tunnel, relieving a lot of traffic on the roadways there and making it a more environmentally friendly option. The Gotthard Base Tunnel is a wonder of engineering! Make us want to visit it!6.When did people first have the idea of building the Tunnel?A.About 70 years ago.B.Half a century ago.C.Twenty-five years ago.D.Seven years ago.7.What can we learn about the Tunnel?A.It used to be an old tunnel.B.It has just been pleted.C.It connects all European countries.D.It runs over a range of mountains.8.What may be the purpose of building the Tunnel?A.To improve traffic.B.To increase employment.C.To attract donation.D.To stop pollution.9.What can be inferred about the Tunnel?A.It will cause conflicts among countries.B.It will be of little benefit to the locals.C.It may do damage to the environment.D.It may bee a tourist attraction.语法填空(xx安徽高中十校联盟高三摸底) 阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。One of the biggest challenges1 (face) by students today is how to concentrate on studies. Almost all of them are struggling for their concentration power. In an age2mobile phones and the Internet are eating up most of our time and energy, one can understand how difficult it is to focus attention and energy on studies.One of the most important3(factor) in developing concentration on a task, whether it is study or anything else,4(be) to develop an interest in the task. We are able to focus5(easy)on tasks that we find more interesting. If you want to concentrate on somethingstudies are no6(except),you need7(ensure) that the environment around you is distraction free. So the question is not how to concentrate on studies8how to avoid distractions that have swallowed up mankind today. The only way to guarantee9distraction-free environment is by getting rid of all the unnecessary things around you, including the electronic gadgets(小器具)10mobile phones.1.2.3.4.5.6.7.8.9.10.短文改错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处语言错误,每句中最多有两处。每处错误仅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:在错的词下画一横线,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10处,多者(从第11处起)不计分。Last Saturday, my parents and I paid visit to my grandparents by train. There was a large number of people in the crowded train, but everyone help those who had lots of baggage and behaved politely. Along the way, we enjoyed beautifully views. At first, we saw one hill after another. Then what came into our eye were fields with green crops. In a six-hour trip, we arrived at my grandparents house. Exhausted though I felt, but I was happy to see my grandparents, which I hadnt seen for a long time. Its really an excited trip because it was the first time I had taken so a long-distance train.答案精解精析.阅读理解A语篇解读本文主要讲述了克隆技术对人类的一些有利的方面。1.C主旨大意题。根据第一段中的is expected to benefit mankind及下面的内容判断,文章主要谈论的是human cloning的优点。2.B推理判断题。根据第二段的to reverse the aging process推断,利用克隆技术可以使人们长寿。3.D推理判断题。根据第三段可知,心脏病是美国和其他工业化国家的头号杀手,因此死于心脏病的人要比死于其他疾病的人多。4.A主旨大意题。最后一段的主要意思是“利用克隆技术可以使不能生育的夫妇有自己的孩子”,所以用A项作小标题。5.B细节理解题。由第四段中的that will be free of rejection by their immune systems可知,用自己的细胞克隆的器官不会有排斥反应。 B语篇解读本文介绍了一条世界上最长的铁路隧道建在瑞士的阿尔卑斯山脉,是隧道工程的奇迹。6.A细节理解题。根据第一段中的“The idea to build it could date back to nearly 70 years ago”可知,选A。 7.B细节理解题。根据第二段“Yesterday, it was finally ready!”可知,这条隧道已经竣工。故选B。8.A细节理解题。根据最后一段中的“relieving a lot of traffic on the roadways there and making it a more environmentally friendly option.”可知,建成这一隧道,有大量的货运和客运车通过隧道,缓解了道路上的交通。故选A。 9.D推理判断题。根据文章最后的“The Gotthard Base Tunnel is a wonder of engineering! Make us want to visit it!”可推知这条隧道可能会成为旅游景点。故选D。.语法填空语篇解读我们生活在一个处处有分心事物的时代,我们需要慢慢学会如何排除分心事物对我们的干扰。1.faced考查非谓语动词。challenges与face为被动关系,故用过去分词短语作后置定语。2.when考查定语从句的关系词。名词age后接定语从句,关系词在定语从句中作时间状语,故用when。3.factors考查名词复数。由前面的one of可知这里应用复数名词,故用factors。4.is考查主谓一致。此句主语是One of the most important factors,所以谓语动词用单数,故用is。5.easily考查副词。这里用副词修饰动词focus,故用easily。6.exception考查名词。be no exception没有例外,也不例外。 7.to ensure考查不定式。need to do.需要做。 8.but本题考查固定搭配。not.but.不是而是。9.a考查冠词。a distraction-free environment一个没有使人分心的事物的环境。故用a。10.like考查介词。此处like为介词,意为“像”。.短文改错Last Saturday, my parents and I paid a visit to my grandparents by train. There waswere a large number of people in the crowded train, but everyone helphelped those who had lots of baggage and behaved politely. Along the way, we enjoyed beautifullybeautiful views. At first, we saw one hill after another. Then what came into our eyeeyes were fields with green crops. InAfter a six-hour trip, we arrived at my grandparents house. Exhausted though I felt, but I was happy to see my grandparents, whichwho I hadnt seen for a long time. Its really an excitedexciting trip because it was the first time I had taken sosuch a long-distance train.pay a visit to为固定短语,意为“参观”。根据主语a large number of people可知谓语动词使用复数形式。根据上下文及语境可知用一般过去时。修饰名词作定语应用形容词。 与our相呼应应使用名词的复数形式。after在以后,符合题意。“in+一段时间”常和一般将来时连用。though不能与but连用。 定语从句的先行词是grandparents,故使用关系代词who引导定语从句。 表示“令人兴奋的”应使用exciting。so修饰形容词或副词,such修饰名词性短语。
展开阅读全文