1、高考资源网（） 您身边的高考专家Unit 21 Human Biology Period FiveCommunication Workshop 课时精练（北师大版选修7，广东专用）时间：40分钟.完形填空阅读下面短文，掌握其大意，然后从各题所给的A、B、C和D项中，选出最佳选项。Before discussing this topic，the replacement of dead people through cloning，a big misunderstanding has to be pointed out.Cloning can only produce_1_identical hu
2、mans but it cant_2_that the personal beliefs or goals will be similar to the_3_，too.This means for example that even if somebody would have a baby whose embryo(胚胎)was enhanced with_4_for musical talent it isnt guaranteed that this baby will someday become a famous_5_.The child may have musical talen
3、t but what he makes out of these_6_，whether he uses them or not，is up to_7_.If it is not interested in taking piano lessons，for example，the talent will stay_8_.The problem is the same when somebody would try to replace a loved one._9_expectations on how the character will be might lead to frustratio
4、n.Of course the outward appearance of the clone will be exactly the same but the personality will be_10_different and thats the critical point here.The clone can never really be a_11_for another person.Also we have to ask us if it is justifiable from the ethical side.Cloning people to_12_others is s
5、omewhat similar to have another baby just to create a perfect donor for the already existing sibling that is_13_.How would you_14_if your parents someday tell you that you were only born for your brother or sister and that you wouldnt be here now if your_15_wouldnt have needed your help or wouldnt h
6、ave died?【解题导语】 本文主要阐述人们对于克隆人的误解，以及道德思考。1A.theoretically BgeneticallyCpractically Dsimilarly答案B“基因上”，根据常识，克隆是无细胞繁殖，克隆产物跟克隆母体的基因是完全一样的。2A.ensure Benable Cpromise Dadmit答案A“确保，保证”，虽然可以克隆出基因相同的人，但却不能保证克隆人的信仰也会跟母体原型类似。3A.pattern Bexample Cmodel Dcopy答案C“原型”。pattern模板、模型，example例子，copy拷贝；复制。4A.genes Bele
7、ments Cpossibilities Dcells答案A5A.teacher Bfootballer Cdentist Dpianist答案D从上文中的musical talent可知有可能成为pianist。6A.embryoes Bexpectations Ctalents Dskills答案C“Children may have musical talent”，但他们如何利用这些talents。7A.the genes Bthe childCthe parents Dthe scientists答案B取决于孩子自己，由后文的it也可得知指孩子。8A.unknown Bundisvov
8、eredCunacceptalbe Dunpopular答案Bunknown未知的；undiscovered存在但未被发现；unacceptable不能接受的；unpopular不受欢迎的。9A.Unreal BUnansweredCUnavailable DUnrealistic答案D表示不切实际的希望会让人受挫。10A.probably Bexactly Cobjectively Dseriously答案A由上文可知克隆产物跟克隆母体的外表是完全一模一样的，但他们的个性却有可能不一样。11A.candidate Bpart Csubstitute Dchoice答案Ccandidate候选
9、人；part部分；零件，substitute替代品；choice选择。12A.replace Brescue Chelp Dsatisfy答案A克隆产物不可能是替代品，所以不能用来代替他人。13A.healthy Bunfriendly Cunhappy Dsick答案D为生病的兄弟姐妹找一个完美的捐赠者。14A.say Bthink Csense Dfeel答案D你会作何感想？say，think跟what搭配，sense不合题意。15A.parent Bsibling Cpet Dfamily答案B由上文的brother or sister可知不是parent，pet，family，而是si
10、bling兄弟姐妹。.阅读理解AFood sometimes gets poisoned with harmful things.A person who eats such food can get an illness called food poisoning.Food poisoning is usually not serious，but some types are deadly.The symptoms of food poisoning usually begin within hours of eating the poisoned food.Fever is one of
11、the most common symptoms.Certain microorganisms(微生物)cause most types of food poisoning.Bacteria and other microorganisms can poison eggs，meat，vegetables，and many other foods.After entering the body，these tiny living things release(释放)poisons that make people sick.Some chemicals can also cause food p
12、oisoning.They are often added to food while it is being grown，processed，or prepared.For example，many farmers spray chemicals on crops to kill weeds and insects.Some people may have a bad reaction to those chemicals when they eat the crops.Some plants and animals contain natural poisons that are harm
13、ful to people.These include certain kinds of seafood，grains，nuts，seeds, beans，and mushrooms.When people handle food properly，the risk of food poisoning is very small.Microorganisms multiply rapidly in dirty places and in warm temperatures.This means that people should never touch food with dirty han
14、ds or put food on unwashed surfaces.Food should be kept in a refrigerator to stop microorganisms from growing.Meat needs to be cooked thoroughly to kill any dangerous microorganisms.People should also wash food covered with chemicals before eating it.Finally，people should not eat wild mushrooms or o
15、ther foods that grow in the wild.Some of these foods may contain natural materials that are poisonous to humans.In addition，some types of fish can be poisonous.Most people recover from food poisoning after a few days of resting and drinking extra water.If people eat natural poisons，they must go to t
16、he hospital right away to have their stomachs emptied.【解题导语】 本文是一篇说明文。文章介绍了引起食物中毒的原因与预防措施。1Which of the following statements is NOT TRUE?AFood when poisoned can make people sick.BFood poisoning means death.CFood poisoning comes in varieties.DFood poisoning can be serious.答案B细节理解题。根据文章第一段的第三句话和最后一段的内
17、容可知食物中毒并不一定意味着死亡，因此B项表述错误。2We know from the passage that the symptoms of food poisoning_.Aare always accompanied by a feverBare too common to be notedCcan be noticed within hoursDcan be ignored答案C细节理解题。根据文章第一段的“The symptoms of food poisoning usually begin within hours of eating the poisoned food”可知食
18、物中毒的症状会在几个小时内表现出来。3Food poisoning can be caused by all the following EXCEPT_.Asome chemicalsBlow temperaturesCsome tiny living thingsDcertain natural materials答案B细节理解题。文章的第二、三和四段列举了引起食物中毒的原因，没有提到low temperatures，因此B项为正确答案。倒数第二段的第二句话也是答案提示。4From Paragraph 5, we can learn that_.Amushrooms should not b
19、e eatenBvegetables are safer than meat and seafood Cnatural poisons are more dangerous than chemicalsDdifferent types of food should be handled differently答案D细节理解题。根据文章倒数第二段的内容可知不同的食物应当采取不同的处理方法以避免食物中毒。5It can be inferred from the passage that_.Anatural materials are safe in food processingBchemical
20、s are needed in food processingCfood poisoning can be kept under controlDfood poisoning is out of control答案C细节理解题。根据文章倒数第二段的内容可知食物中毒也是可以预防的，因此选择C项。BSister Cities International is an organization that brings together communities from different areas and different cultures.Sistercity relationships can
21、 help communities learn from each other and solve problems together.Often these partnerships are based on special projects or exchanges.People share their knowledge in areas like education，government，business or technology.Building sistercity relationships was one of the ideas for the“PeopletoPeople
22、”program created by President Dwight Eisenhower.He established the program at a White House conference held on September the eleventh and twelfth,1956.President Eisenhower wanted to connect citizens who shared an interest in other cultures.He wanted to increase international understanding and friend
23、ship through educational，cultural and humanitarian activities.He believed that citizen diplomats could help build peace.Sister Cities Program was started in Washington DC.Now the group is involved with programs in one hundred and thirtyfour countries.Today，seven hundred American communities have par
24、tnerships with almost one thousand eight hundred communities in other countries.Atlanta，Georgia，for example，has eighteen sistercity partnerships.One is with Brussels，Belgium.Another is with Lagoes，Nigeria.These two relationships have existed for more than thirty years.The areas they involve include
25、economic development and trade.Matthew Corso works for Sister Cities International.He says that within the past fifteen years，more American cities have created partnerships in developing countries.Projects have involved things such as water quality，health care and good government.In Africa，projects
26、might also deal with AIDS and HIV.Sistercity partnerships usually result from local connections.Local governments also become involved and may provide some leadership，but generally，citizen groups are responsible for organizing and supporting partnerships.Some sistercity relationships are fifty years
27、 old now.There are even “cyber sister cities”partnerships created over the Internet.6We can infer that the author_.Abelieves that local governments play a role in providing some leadershipBprefers to create partnerships in developed countriesCsays sistercities can learn from each other but cant solv
28、e problems togetherDthinks little of sistercity relationships答案A推理判断题。从文章最后一段的第二句“Local governments also become involved and may provide some leadership.”，可知A正确。7The“PeopletoPeople”program was created by_.APresident Dwight EisenhowerBPresident John Fitzgerald KennedyCPresident George WashingtonDPres
29、ident Franklin Roosevelt答案A细节理解题。从文章第二段的第一句话“.PeopletoPeople program created by President Dwight Eisenhower.”可知答案为A。8Which of the following is TRUE according to the passage?ASistercity relationships are based on only exchanges.BThe“PeopletoPeople”program was one of the ideas for building sistercity
30、relationships.C1,800 American communities have partnerships with 700 communities in other countries.DSistercity partnerships usually exist as a result of the local connections.答案D细节理解题。由第一段的第三句“Often these partnerships are based on special projects or exchanges.”我们得知A不全面，另外B和C的叙述前后颠倒。根据文章最后一段第一句“Sis
31、tercity partnerships usually result from local connections.”推出D正确。9Which of the following is NOT a part of the projects?AWater quality. BHealth care.CDealing with AIDS. DProtecting wild animals.答案D细节理解题。文中讲了美国实施的工程设计范围，由句子“.more American cities have created partnerships in developing countries.Proje
32、cts have involved things such as water quality，health care and good government.In Africa，projects might also deal with AIDS and HIV.”看出前三项是在范围之内的，所以正确答案是D。10Which of the following would be the best title for the text?APeopletoPeople ProgramBBuilding SisterCity RelationshipsCWork and CooperationDSharing the Same Knowledge答案B主旨大意题。本文讲述了美国城市和其他国家城市建立姊妹城市关系的由来、发展和好处等。因此，本文题目应该是“建立姊妹城市关系”，其他的选项很片面。- 8 - 版权所有高考资源网