2020-2021学年高二英语(人教版必修8)单元过关检测(二)-Word版含答案.docx
《2020-2021学年高二英语(人教版必修8)单元过关检测(二)-Word版含答案.docx》由会员分享,可在线阅读,更多相关《2020-2021学年高二英语(人教版必修8)单元过关检测(二)-Word版含答案.docx(6页珍藏版)》请在咨信网上搜索。
1、单元过关检测(二)(时间:120分钟,满分:150分)第卷第一部分阅读理解共两节,满分60分第一节(共15小题;每小题3分,满分45分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。A(2022长沙重点中学高三第四次月考) When you look at yourself in the mirror,do you ever wonder why you look the way you do?No two faces look exactly alike, making a human face as unique as a fingerprint. Genetics
2、(遗传学) obviously play a major roleno two faces share the same DNA.But even in identical twins, there are still small differences in their appearances. So what is it that makes each face different?The answer lies in a small piece of your DNA called a “gene enhancer”, according to a study published in
3、Science. “There are thousands of enhancers in the human genome,” study leader Axel Visel,a researcher with Berkeley Lab. US. told Discovery.According to Visel, these DNA pieces act like switches, turning genes on and off and therefore determining whether a certain facial feature develops in a fetus(
4、胎儿) while it is still in the womb(子宫)Whats interesting about gene enhancers is that they dont have to be found anywhere close to the genes they affect. They are able to control their targets from far away, which makes them even more influential.To test how powerful these special DNA pieces are in sh
5、aping the face,researchers deleted three of the gene enhancers in mice and compared them with normal mice at 8 weeks of age. The results showed that each enhancer deletion caused a distinct set of differences in the shape of the facefor example, causing an increase or decrease in facial length or wi
6、dth.In fact, scientists first noticed the existence of gene enhancers long ago, but they called them “junk DNA” back then because they didnt produce proteins and were thought to have no biological function. But now “its increasingly clear that important functions are embedded in this junk” Visel tol
7、d New Scientist.Understanding this may help scientists learn why and how things go wrong as a fetus develops, leading to facial birth defects(缺陷) such as cleft lips.Maybe gene enhancers also play a role.【语篇解读】为何每个人都长得不一样?文章介绍了科学家们争辩基因对于人们长相的影响的试验,解释了这一个问题。1What did Visels recent study uncover?AHow g
8、ene enhancers help shape the appearance of the face.BHow gene enhancers affect the growth of the fetus.CA new cure for facial birth defects.DThe connection between gene enhancers and genetic mutations(变异)解析:选A。主旨大意题。本文主要回答的是其次段提出的问题:So what is it that makes each face different?争辩发觉,这主要是基因增加子的功劳,所以答案
9、是A项。2What does the underlined word“embed” probably mean?ARoot.BFind.CAbsorb. DResearch.解析:选A。词义猜想题。依据上下文可知这句话的意思是:现在事实越来越清楚的显示出重要的功能就扎根于这种junk DNA中。embed和root的意思相近。故选A项。3Which of the following might be the best title for the passage?AGene Enhancers Affects Birth DefectsBFacing Gene EnhancersCThe Pow
10、er of DNA PiecesDGene Enhancers Determines Your Personalities解析:选B。标题归纳题。依据文章大意,作者主要是想介绍gene enhancer和人类面貌不同之间的关系。所以较为合适的题目是B项。B(2022湖南十三校高三第一次联考)Sometimes people call each other “freakedcat”, but have you ever thought about this expression? When a cat is frightened, its heart starts beating faster,
11、 its muscles get tense, and there are changes in the chemicals in its bloodstream. Although the cat doesnt realize this, its body is getting ready for action.If the danger continues, the animal will do one of two things. It will defend itself,or it will run away as fast as it can.Something like this
12、 also happens to people. When we are excited,angry, scared, or aroused by other emotions (feelings), our bodies go through many physical changes. Our hearts beat faster, and our muscles get tense. All of these changes make us more alert and ready to react. We, too,get ready to defend ourselves or ru
13、n.Human beings, however, have a problem that animals never face.If we give way to our feelings and let them take over, we can get into trouble. Have you ever said something in angeror hit somebodyand regretted it later? Have you ever shouted at a teacher,told somebody you were lonely, or said you we
14、re in love, and then wished later you had kept your mouth shut?It isnt always clever to express your feelings freely.Does this mean that its smarter always to hide our feelings? No! If you keep feelings of anger, sadness, and bitterness hidden away or bottled up inside, your body stays tense. Physic
15、al illness can develop. It can actually be bad for your health.(It isnt good to keep pleasant feelings inside either;all feelings need to be expressed.)Feelings that you keep all bottled up inside dont just go away.Its as if you bought some bananas and stuck them in a cupboard.You might not be able
16、to see them,but before long youd smell them.And if you opened the cupboard,chances are that youd see little fruit flies flying all over them.Theyd be rotten.You can try to treat emotions as if they were bananas in the cupboard.You can hide them and you can pretend they dont exist,but theyll still be
17、 around.And at last youll have to deal with them,just like those bananas.【语篇解读】本文主要用一只猫引出话题。人类把好的心情或者坏的心情藏在心里对身体没有好处。全部的心情都需要表达。4The best title for this article is _AEmotions Affect Our BodiesBWhat Happens to A Frightened CatCWhat Happens to An Excited PersonDFeelings That People Have解析:选A。本文主要介绍了心情
18、对我们身体的影响。随时表露自己的真实情感并不合适,但是总是把不良心情压抑在心中害处更大。故本题选A项。5What does the word “freaked” mean in the first sentence?AExcited. BScared.CAngry. DShocked.解析:选B。词义猜想题。从下文的When a cat is frightened,its heart starts beating faster,its muscles get tense,and there are changes in the chemicals in its bloodstream.可知,这
19、是指一只可怕的猫的表现。6If you hold in your feelings,_Agradually theyll disappearBthey wont exist any moreCthey will fly all overDyour body stays tense解析:选D。细节理解题。从第五段的If you keep feelings of anger,sadness,and bitterness hidden away or bottled up inside,your body stays tense.可知答案。7The author wrote this article
20、 in order to _Atell us that it isnt good to keep feelings insideBgive us some advice on how to express our feelingsCmake us face the problem that we have to deal with feelingsDmake us know that it isnt always wise to express our feelings freely解析:选A。推理推断题。文章的最终三段说的是不论好的心情还是坏的心情,都不能始终憋在心里,这样对身体很不好,也不
21、是解决问题的方法。故A项为本题答案。CHave you ever heard of Florida pompano?Its a flat, silvery fish and very delicious! In fact, people who know a lot about fish say its one of the besttasting kinds of fish in the world to eat. Maybe thats one reason why it costs so much to buy pompano(鲳参鱼) at the fish market or at
22、a restaurant.Agricultural Research Service scientists in Florida are discovering many new and important secrets about this tasty fish. It lives in the warm waters off the Atlantic and Gulf coasts.The scientists are studying pompano. Because they want fish farmers to be able to grow them in big tanks
23、, somewhat the same way trout and catfish are grown in big outdoor ponds.Raising pompano in big tanks inland could help everyone be sure that there will always be lots of wild pompano in the sea. People could buy them from the fish farm instead of mostly only being able to buy pompano caught from th
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 优化方案 优化 方案 2020 2021 学年 英语 人教版 必修 单元 过关 检测 Word 答案
1、咨信平台为文档C2C交易模式,即用户上传的文档直接被用户下载,收益归上传人(含作者)所有;本站仅是提供信息存储空间和展示预览,仅对用户上传内容的表现方式做保护处理,对上载内容不做任何修改或编辑。所展示的作品文档包括内容和图片全部来源于网络用户和作者上传投稿,我们不确定上传用户享有完全著作权,根据《信息网络传播权保护条例》,如果侵犯了您的版权、权益或隐私,请联系我们,核实后会尽快下架及时删除,并可随时和客服了解处理情况,尊重保护知识产权我们共同努力。
2、文档的总页数、文档格式和文档大小以系统显示为准(内容中显示的页数不一定正确),网站客服只以系统显示的页数、文件格式、文档大小作为仲裁依据,平台无法对文档的真实性、完整性、权威性、准确性、专业性及其观点立场做任何保证或承诺,下载前须认真查看,确认无误后再购买,务必慎重购买;若有违法违纪将进行移交司法处理,若涉侵权平台将进行基本处罚并下架。
3、本站所有内容均由用户上传,付费前请自行鉴别,如您付费,意味着您已接受本站规则且自行承担风险,本站不进行额外附加服务,虚拟产品一经售出概不退款(未进行购买下载可退充值款),文档一经付费(服务费)、不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
4、如你看到网页展示的文档有www.zixin.com.cn水印,是因预览和防盗链等技术需要对页面进行转换压缩成图而已,我们并不对上传的文档进行任何编辑或修改,文档下载后都不会有水印标识(原文档上传前个别存留的除外),下载后原文更清晰;试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓;PPT和DOC文档可被视为“模板”,允许上传人保留章节、目录结构的情况下删减部份的内容;PDF文档不管是原文档转换或图片扫描而得,本站不作要求视为允许,下载前自行私信或留言给上传者【人****来】。
5、本文档所展示的图片、画像、字体、音乐的版权可能需版权方额外授权,请谨慎使用;网站提供的党政主题相关内容(国旗、国徽、党徽--等)目的在于配合国家政策宣传,仅限个人学习分享使用,禁止用于任何广告和商用目的。
6、文档遇到问题,请及时私信或留言给本站上传会员【人****来】,需本站解决可联系【 微信客服】、【 QQ客服】,若有其他问题请点击或扫码反馈【 服务填表】;文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“【 版权申诉】”(推荐),意见反馈和侵权处理邮箱:1219186828@qq.com;也可以拔打客服电话:4008-655-100;投诉/维权电话:4009-655-100。