2019_2020学年高中英语课时分层作业9LearningaboutLanguage（含解析）外研版选修6.docx

课时分层作业(九)语言知识练习固基础.单句语法填空1One can gain a lot of experience while doing(do) a parttime job.2We didnt dare to make a sound for fear of waking the sleeping baby.3The President refused to answer(answer) further questions on the subject.4His age was evident in his gray hair and wrinkled(wrinkle) face.5Hearing the strange sound, the child was shaking with fear.6Cancer is caused by chemicals in the air we breathe(breath), the water we drink, and the food we eat.7The scene of the traffic accident is covered with blood and brains, which is extremely disgusting(disgust)8He was put into prison because he murdered(murder) an old lady.9It is expected that the bridge will have been completed by next April.10Seeing terrified people trying to get out of a burning building, he stood there, terrified(terrify).选词填空for the first time, burn out, contrast with, throw oneself on, again and again1Its normal for you to feel nervous when you went on the platform for the first time2His actions contrast sharply with his promises. 3The hotel was completely burnt out; only the walls remained.4I have explained again and again, but even now they do not understand.5I felt a bit tired after a long trip. So I threw myself on the couch and fell asleep soon.高考题型练习提能力.阅读理解When European settlers arrived in North America, they brought European diseases with them.Then, huge numbers of Native Americans began dying from smallpox (天花) infection.Fivehundredyearold documents record this tale, but now scientists say theyve found other evidence buried deep inside human cells.In a new study，Brendan OFallon and Lars Fehren Schmitz report evidence found in genes that the Native American population dropped by half after the arrival of Europeans.OFallon studies genes at ARUP Laboratories in Salt Lake City, while Fehren Schmitz is a scientist who studies humankind, at the University of Gottingen in Germany.Cells make up every part of the body.Deep inside almost every cell is a long，coiled molecule (盘绕颗粒) called DNA.Genes are parts of DNA that play important roles in determining ones life.Genes help determine a persons appearance, such as skin color and height, and also play a role in many things you cant see, like the chance of getting a disease.Genes change over time, and by following these changes scientists can learn about a persons ancestors.OFallon and Fehren Schmitz looked at genes in the mitochondria of cells.(Mitochondria are like factories that help cells use energy from food.) The scientists compared DNA from the remains of ancient Native Americans with DNA from living people descended (遗传) from Native Americans.The scientists studied patterns in the genes from the two groups and identified ways that the patterns changed over time.Using statistics, which includes useful mathematical tools for analyzing large amounts of data, the researchers were able to judge the size of the Native American population before and after the Europeans arrival.The comparison showed the number of native people reduced sharply after European settlers landed in the New World.Earlier genetic studies didnt have evidence of the Native American dieoff.Scientists involved in the new study say that theres now more data from ancient remains, so researchers can get a better idea of what happened.【语篇解读】基因承载了人类遗传密码，是随时间的推移而不断变化的。通过对基因的分析和研究，人们可以解开很多秘密。1When European settlers arrived, they brought to North America.Asmallpox diseaseBold documentsCother evidence Da new studyA细节理解题。根据第一段“When European settlers arrived in.dying from smallpox(天花)infection.”可知欧洲殖民者进入北美洲时，也带去了传染病，所以A项正确。2Genes help determine many things of a person EXCEPT Aa persons appearanceBa persons skin colorCa persons heightDa persons successD细节理解题。根据第三段“Genes help determine a persons.chance of getting a disease.”可知基因可决定一个人的外表、肤色、身高，或得某种疾病的可能，而不是一个人的成功。所以D项正确。3The scientists got the result of the study by Afollowing genes change over timeBstudying genes of ancient peopleCanalyzing large amounts of dataDfinding out genes in the cellsC细节理解题。根据第五段“Using statistics，which includes.Europeans arrival.”可知通过分析对比数据，得出欧洲人到美洲前后美洲居民的数量，从而得出最后的结论。所以C项正确。4What can be the BEST title of this passage?AScientists Working on GenesBGenes Tell an Old StoryCEuropeans Arrival in AmericaDDNA Changes Over TimeB标题归纳题。本文主要讲的是研究基因，通过数据分析的方式来找到历史事件的证据。A项意思是“研究基因的科学家”；C项意思是“欧洲人来到美洲”；D项意思是“DNA随时间变化”，表述都比较偏颇，与本文主要内容不符。所以B项正确。.完形填空A few days ago I saw two baby ducklings that were lost in the grass. 1 ，one of them was found dead, and I decided to take the other one in 2 he got big enough to 3 himself.When I decided to take him in, he was actually being followed by a starving 4 ， so it was a good thing that I saved him.At first he showed 5 ，but after several days he seemed 6 worried about me as I fed him some corn which he certainly seemed to 7 After saving the little duck, I spotted a place appropriate for him，a 8 where he might catch small fish.I was 9 him and feeding him every day, and recently he was doing well.I 10 that he would have been killed by a cat if I hadnt 11 him.When I was originally 12 taking him in, I had others tell me to “let nature take its course”However, this is an absurd and contradictory 13 .When humans want to do 14 things，such as killing animals 15 food, they will appeal to nature.At that time, in their mind, they are part of nature. 16 ，when it comes to doing something constructive and helpful, all of a sudden theyre not part of nature and they should just 17 back and “let nature take its course”We shouldnt pick and 18 when we are part of nature simply to 19 our own selfcentered desires.If we are part of nature, then helping a(n) 20 in need is letting nature take its course in the true and most noble way.【语篇解读】作者在池塘边遇到两只被遗弃的小鸭，其中一只死掉之后，作者不顾别人的劝说把剩下的一只收养起来，并且对它照顾得很好。从这件事情中，作者感悟到帮助需要帮助的动物就是顺应自然。1A.Curiously BUnfortunatelyCAmazingly DHonestlyB前面提到在池塘边的草丛中有两只迷失的小鸭，后面提到其中一只小鸭死了，所以此处应该是“不幸地是(unfortunately)”。2A.until BunlessCif DalthoughA此处表示作者决定将收养另外一只小鸭，一直(until)等到它长大，自己能够照顾自己。3A.come to Blook afterCplay with Dkeep toB语境为：我决定抚养这只鸭子，直到它长大能够照顾自己为止。look after，“照顾，照料”，符合语境。4A.duck BgooseCcat DdogC此处语境是：当我决定收养它的时候，它实际上被一只饥饿的猫盯上了，所以我收养它是做了一件好事。由下文“he would have been killed by a cat if I hadnt him”可知。5A.fear BpityCrespect DsadnessA此处语境为：刚开始的时候，它有点怕我，但几天之后，就不那么怕我了。6A.nearly Bless Cextremely DslightlyB此处表示小鸭对作者态度的转变，刚开始有点怕，随着作者用粮食喂养他，小鸭对作者不太担心了。所以用比较级less。7A.witness BcherishCenjoy DteaseC由此句中的“fed him some corn”、“certainly”两处信息可推断，此句语境是：“我拿粮食喂它，看起来它当然很喜欢(enjoy)吃”。8A.tree BbowlCbox DpondD根据“where he might catch small fish”可知，pond为最佳选项。9A.calling for Bchecking onCadapting to Dturning toB此处语境为“我每天都去看看(check on)它，并且给它喂点吃的，最近它状况良好。”check on意为“查对，核实、检查”。10A.claimed Bshowed Cfigured DprovedC此处语境为“我认为(figure)如果不是我发现了它，它可能已经被猫叼走了。”figure意为“认为，认定”。11A.cured Bneglected Cfound DgraspedC根据上下文，选项found符合语境，如果那天我没发现他的话，他就会被猫吃掉。12A.imagining BrecommendingCrisking DconsideringD当作者最初考虑(consider)要收养它的时候，有人告诉他“顺其自然”吧。13A.argumen