（全国）2020年高考英语一轮复习 Unit 2 Cloning课时作业 新人教版选修8

Unit 2 Cloning.阅读理解A体裁：说明文话题：医学词数：319时间：7Each year，half a million people die from brain aneurysms(动脉瘤)when a blood vessel bursts in the brain.An aneurysm is a bulge in a blood vessel that can burst.If that happens in the brain，it can be deadly.For survivors，physical disabilities are often severe.They may include memory problems，loss of balance，trouble speaking and even blindness.But new technologies are increasing survival rates and reducing disabilities.Beaumont Bacon is a survivor who makes light of her experience because she is a comedian.She uses humor to make others laugh.Now shes working on a new show.Michael Alexander is her doctor.He operated on Beaumont Bacon after her attack.“She had bleeding in the frontal area of her brain，so right above the eyes.The part that was in the brain was about maybe the size of an egg.So，thats a fairly large bleed.”Ms.Bacon had a better chance at survival than most people because of Dr.Alexander.He directs the Neurovascular Center in Los Angeles.The center offers new technologies that include placing a catheter(导管) into an aneurysm，then threading wires to promote blood clots(血栓)This technique reduces the chances of another burst blood vessel.“You dont have to open up the skull or open up the brain to do surgery.Its all done from inside the blood vessels.So it reduces the amount of blood loss，and the recovery is much faster.”For Beaumont Bacons recovery，the hospital worked to prevent problems commonly found in patients with a burst aneurysm.The problems include brain swelling that can shut down blood vessels.She spent a month in a coma(昏迷)unable to communicate with doctors，friends and loved ones.But with a year of treatment，she recovered.Now，she is making people laugh.1What is the purpose of the text?ATo give some practical advice.BTo tell an interesting story.CTo introduce a treatment technology.DTo present a research result.答案C推理判断题。本文说明了一项治疗大脑动脉瘤的新技术，所以本文的写作目的是介绍一种新的治疗技术。故选项C正确。2What do you know about aneurysms?ANo technologies can treat them nowadays.BThey are deadly wherever they happen.CFew people die of them every year.DThey may cause severe disabilities.答案D细节理解题。根据第一段中的For survivors，physical disabilities are often severe.They may include.可知，动脉瘤可以造成严重的身体的残疾。故选D。3The new technology has the following benefits EXCEPT that _Ait is much faster for the patient to recoverBit doesnt cause any pain for the patientCit reduces the amount of blood lossDit need not open up the brain to do surgery答案B细节理解题。根据第三段内容可排除A、C、D三个选项。故选B。4It can be known from the passage that Beaumont Bacon _Awas always in a coma during the surgeryBrecovered soon after the treatmentCreturned to work after the treatmentDwas the first to apply the new technology答案C细节理解题。根据短文第二段中的Now shes working on a new show.以及最后一段最后一句Now，she is making people laugh.可知，Beaumont Bacon在治疗后又重返工作岗位了。故选C。B体裁：记叙文话题：人物与事件词数：301时间：6There were about 70 scientists working on a very important project.All of them were really tired because of the pressure of work and the demands of their boss but everyone did not think of stopping their job.One day，one scientist came to his boss and told him，“Sir，I have promised my children that I will take them to the exhibition so I want to leave the office at 5：30 pm.” His boss replied，“OK. Youre permitted to leave the office early today.”The scientist started working.He continued his work after lunch.He devoted himself to his work and when he finished his work，it was 8：30 pm.Suddenly he remembered the commitment he had made to his children.He looked for his boss but he was not there.He closed everything and left for home.He was feeling guilty for having disappointed his children.When he reached home，he found the children were not there.His wife was sitting in the hall and reading magazines.His wife asked him，“Would you like to have coffee or shall I serve dinner if you are hungry？” But the man asked，“Where are the children？” His wife replied，“You dont know? Your boss came here at 5：15 pm and has taken the children to the exhibition.”The boss found him working seriously at 5：00 pm.He thought to himself，this person will not leave the work，but if he has promised his children they should enjoy the visit to the exhibition.So he took the children to the exhibition instead of the scientist.The scientist was deeply moved.Do you know who the boss was? He was the leader of Indias successful nuclear weapons and missiles(导弹) program and the former president of IndiaDr.APJ Abdul Kalam.【语篇解读】员工在努力工作，忘记了带孩子去参观展览的承诺。老板亲自带孩子去看展览。这是一群不平凡的人，他们是谁呢？5The underlined word “commitment” in Paragraph 3 means _Aexplanation BpromiseCexpression Dapology答案B词义猜测题。根据上面一段中的I have promised my children再结合本句语境可知，画线单词的意思应该是“许诺；诺言”。6The best title of the passage probably is _ADr.APJ Abdul KalamBA hardworking scientistCIndias nuclear weapons and missiles programDA caring and respectable boss答案D主旨大意题。通读全文可知，这位老板代替科学家带领科学家的孩子们去看展览，说明他是一位关心别人同时又是一位令人尊敬的老板。故文章标题应该是D。7Why did the scientist ask for a leave?AHe was too tired to work.BHe wanted to have coffee with his wife.CHe planned to take his children to an exhibition.DHis boss asked him to do so.答案C细节理解题。根据第二段中的I have promised my children that I will take them to the exhibition so I want to leave the office at 5：30 pm.可知，科学家请假的原因是他要带孩子去看展览。8We can infer from the passage that _Athe scientist felt sorry for not taking his children to the exhibitionBDr.APJ Abdul Kalam loved children and often played with themCthe scientist would go to the exhibition after talking with his wifeDthe scientist would be grateful to his boss答案D推理判断题。根据短文内容以及The scientist was deeply moved.可知，科学家对老板的行为充满感激。.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选项。Littleknown facts about germsGerms are everywhere and in so many forms._9_ There are some steps you can take to help prevent the spread of germs in your personal space.Computer keyboards can have more germs than a public toilet.Keys and spaces on a keyboard are main breeding grounds for bacterial and viral growth._10_ Clean your keyboard regularly with specialized wipes for electronics，and remove dust with an air duster._11_ While it seems to make sense that covering your toothbrush would protect，the opposite is the case.With a cover on your brush，a more humid environment is created and more likely to encourage growth of germs.Wash your toothbrush when done，and allow it to air dry.Make sure you store it away from the toilet.Hand sanitizer(洗手液) does not always replace soap and water washing.Hand sanitizer is great when youre not near a sink，and need to clean your hands.But given the choice of a spritz of sanitizer or good old soap and water，choose the soap and water route._12_ Lather up and scrub hard for at least 20 seconds，and wash between your fingers and the back of your hands.Dont skimp with the hand sanitizer eithercover the same hand areas as for soap and water._13_ If you freeze foods that you suspect might be spoiled，freezing them will not kill the germs already in the food.Freezing prevents further bacterial growth，but when you thaw it out，the bacteria continue to increase and pollute your food.AFreezing food does not kill germs.BTry not to eat outside especially in summer.CExposure to germs can lead to many illnesses.DToothbrush covers do not protect your brushes from bacteria.EThere are a lot of effective ways to get rid of germs in your house.FSoap and water are only a better germ fighter when done properly.GSome reports show five times more germs on a keyboard than on a public toilet.答案9C本文第一段为主题段，说明细菌无处不在，形式多样，可以产生许多疾病，以下几段是说明一些知之甚少的关于细菌的实事以及应该采取的不受细菌伤害的方法。选项C说明细菌会产生很多疾病，应该属于主题段内容。故选C。10G本段标题为“计算机键盘比公共厕所有更多的细菌”，选项G正是说明了一些报告显示计算机键盘比公共厕所的细菌多5倍。符合本段标题。故选G。11D本段内容主要说明牙刷盖不能保护你的牙刷不受细菌的侵入。故选项D可做本段的标题。12F本段说明洗手液不能代替肥皂和水洗。选项F正是说明肥皂盒水洗如果正确使用是最好的祛除细菌的方法。故选F。13A本段说明冷冻食品不能杀死细菌。本段中的freezing them will not kill the germs already in the food.提示了该空格应该选A。.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。Dear Manager，I am writing to you complain about the quality of the mobile phone in which I bought from your online store last week.The mobile phone occasionally switches i