高中Unit 2 Cloning练习题

这是一份高中Unit 2 Cloning练习题，共9页。
Unit 2　Section ⅢⅠ．单词拼写 1．S________afterwards，the police stopped the car and both men were arrested．2．As students，we should obey school r________．3．Don't b________him with such silly questions；he is busy receiving foreign guests now．4．His suggestion sounds quite r________to most of us．5．I just can't r________chocolate．6．They have just finished the________(装饰) of their bathroom．7．It's not necessarily a bad thing to________(崇拜)film stars．8．The________(最初的) response has been encouraging．9．One can't learn a language well________(仅仅) by learning rules of its grammar．10．Our________(设想) that we would win was wrong at last．答案：1．Shortly　2．regulations/rules　3．bother　4．reasonable　5．resist　6．decoration　7．adore　8．initial　9．merely10．assumptionⅡ．完成句子1．童年的经历使他对贫穷刻骨铭心。The experience in his childhood________poverty ________ ________ ________．2．古代埃及的法老期望他们的后代使他们复活。In ancient Egypt Pharaohs expected their future generations to________ ________ ________ ________ ________．3．当他长大时，他明白了为什么他有必要不时地去看望父母。When he grows up he understands why it is necessary for him to visit his parents________ ________ ________ ________．4．只要那座旧房子状况良好，我们就买下它。We will buy the old house as long as it is________ ________ ________．5．我们企图说服他跟我们一起去，但是白费力气。We tried to persuade him to go with us，but________ ________．答案：1．struck；into his heart　2．bring them back to life3．from time to time　4．in good condition　5．in vainⅢ．完形填空I am a very lucky girl and my family is the nicest in the world．When we're out we have to behave__1__but when we're at home we play and laugh and have lots of fun．“ You __2__them！” Mummy says，but then she laughs and kisses him so I know she's not really__3__．We have all sorts of games like the one where the hall is the__4__and the tables and chairs are different countries．Then Daddy tells us all about his travels，but he says the best thing was when he __5__Mummy and fell in love with her．“Now that's a (n) __6__ending，” he says．He's a wonderful Daddy and is always nice and funny．When Mummy__7__and says she's getting lots of white hairs he laughs and says，“ I'll be__8__them soon．” Then he hugs her till she__9__．And he lets me ride on his back round the room making horse noises．Or sometimes we play hide­and­seek or blind man's buff．__10__Daddy doesn't really like it，he laughs and__11__it anyway．Nobody is as nice as my Daddy and when I was little，I wanted to__12__him．When I told him，he said，“What about Mummy？ You don't want me to make Mummy__13__，do you？” Of course I didn't，and he said that I would always be his best and favourite__14__and that we would always be special friends．Mummy is nice too but__15__a different way．She tells  us bedtime stories．I like the one about a little girl learning how to be a(n)__16__to control a powerful country．She says her Mummy and Daddy were very__17__and never had any fun and she only started having fun when she__18__Daddy．Then she tells us how and it is a wonderful__19__，just like the old tales but not__20__like them．文章大意：本文是一篇记叙文，充满了一股浓浓的亲情，读后会让很多为父母者羡慕不已。1．A．badly       B．secretlyC．properly      D．fairly答案：C　behave properly举止得体。此处是说在家中，孩子们可以有说有笑，但是出去的时候则要注意行为的得体。2．A．spoil        B．select       C．lose         D．save答案：A　这是母亲对父亲开玩笑的话。them指代孩子们。母亲说：“你把他们都惯坏了！”3．A．excellent    B．serious      C．honest        D．afraid答案：B　前文的laughs和kisses提示此处选B项。母亲说完后大笑并且亲吻爸爸，可以看出她是在和父亲开玩笑，不是认真的。4．A．place       B．school      C．stadium       D．world答案：D　所选词表达的范围要大于后面的countries，因此选D项。我们会把大厅当成世界，把桌子和椅子当成不同的国家来做游戏。5．A．left         B．recognised  C．knew         D．appointed答案：C　后文的fell in love with her决定此处选C项，即先认识后恋爱。6．A．happy      B．terrible     C．moving       D．ordinary答案：A　从女儿的叙述可以看出，现在父母非常恩爱，因此应该说结局很幸福。7．A．doubts      B．jokes       C．cries         D．sighs答案：D　因为发现自己有白发了，所以母亲叹息。误解分析：易误选C项，但C项未免过于夸张了，有了很多的白发不至于要哭闹，另外假如母亲哭了，父亲也不能用laugh的方式安慰。8．A．getting      B．owning     C．growing       D．removing答案：A　空后面的宾语them指代white hairs，由此可知应该选择A项。父亲安慰母亲说，自己不久也会长白头发的。误解分析：易误选C项，但grow用作及物动词时意为“种植”。9．A．breaks up                 B．cheers up  C．shows up                  D．dresses up答案：B　母亲因为长出了许多白发而叹气，父亲便哄她，然后抱着她直到她开心起来。cheer up振作起来；break up分解；show up出现；dress up乔装打扮。10．A．Even if    B．Now that   C．Once         D．Because答案：A　设空处所在句子的逗号前后两部分相互矛盾，因此应该用表示让步的连词。even if意为“即使”，引导让步状语从句。now that既然，表原因。once一旦，表条件。because因为，表原因。11．A．changes   B．refuses      C．plays         D．stops答案：C　空后面的it是解题关键。it指前面提到的游戏，因此选择C项。虽然父亲不是真正喜欢那个游戏，但是还是陪孩子玩。12．A．respect    B．leave       C．praise         D．marry答案：D　没有人会像父亲那样好，因此作者小时候甚至想要嫁给他。误解分析：易误选其他选项而将D项排除掉，女儿怎么能嫁给父亲呢？但是别忘了此处是女儿表达自己儿时对父亲的喜爱程度的。13．A．excited    B．unhappy    C．dead          D．proud答案：B　这是父亲对天真的女儿示爱的回复。你要是嫁给我，那你妈妈呢？你不想让你妈妈不高兴，对吗？C项太夸张了，不合常理。14．A．girl        B．lover       C．sister         D．teacher答案：A　这仍然是父亲开导女儿的话。父亲说作者永远是他最优秀、最喜欢的女儿。此处girl相当于daughter。15．A．on        B．in         C．by           D．with答案：B　in a…way以……的方式。16．A．teacher    B．king       C．queen        D．actress答案：C　根据空后面的to control a powerful country可知，选择C项合理。17．A．kind       B．strict       C．honest        D．cruel答案：B　结合空后面的never had any fun这一细节可知，应该选B项，母亲的爸爸妈妈对她非常严厉。18．A．defeated   B．fooled       C．met           D．missed答案：C　只有选择C项才符合逻辑。母亲说只有遇到了作者的父亲后才开心。19．A．story      B．plan        C．family        D．marriage答案：A　所填词与空后面的tales是同义词。母亲然后开始讲述过程，作者认为这是一个非常精彩的故事。20．A．dirty      B．boring      C．scary       D．scientific答案：C　四个选项中只有C项用来描述tales并且与wonderful形成对比。Ⅳ．阅读理解In 1961，two biologists named Leonard Hayrick and Paul Moorehead discovered that old age is built into our cells．At the time，many scientists believed that if healthy human cells were put in a container with a steady supply of nutrients，they would multiply forever．But when Dr．Hayflick and Dr．Moorehead cultivated fetal human cells，that's not what they found．Time and again，their cells would divide about 50 times and then simply stop．Cells that stop growing this way came to be known as senescence．Many scientists suspected that cells became senescent only in the unnatural conditions of a lab．But researchers then discovered that cells stop growing in the human body．In fact，it turned out，senescent cells are involved in the destructive effect of old age．Given all this research，the_last__place_you_would_expect_to_find_senescent_cells_would_be_at_the_very_start_of_life．But now three teams of scientists am reporting doing just that．For the first time，they have found senescent cells in embryos，and they have offered evidence that senescence is crucial to proper development．The discoveries raise the prospect that the dawn and dusk of life are closely connected．For life to get off to the right start，in other words，youth needs a small amount of old age．Scott Lowe，an expert on senescence at Memorial SloanKettering Cancer Center who was  not involved  in  the research，praised the studies for pointing to an unexpected role for senescence．He predicted they would promote a spirited debate among developmental biologists who study how embryos form．“They're going to really love it or really hate it，”Dr．Lowe said．As scientists came to realize the importance of senescent cells to aging，they began to work out what causes them to stop growing．They found as cells divide，they accumulate damage to their DNA．Once a cell becomes too damaged，it switches on a set of genes that causes it to become senescent．Besides  stopping  their  growth， scientists  found，senescent cells also produce a mixture of chemicals．The chemicals they release can create chronic inflammation．They also attract  certain  immune  cells，which  seek  out  the senescent cells and kill them．This behavior can actually be good for our health．In the mid­2000s，William Keyes，a biologist then at Cold Spring Harbor Laboratory on Long Island，was studying how senescence leads to aging with experiments on mice．By shutting down a gene called P63，he could accelerate the rate at which the mice accumulated senescent cells and accelerate their aging．To observe the senescent cells，Dr．Keyes added a special stain to the bodies of these mice．To see the difference between these mice and normal ones，Dr．Keyes added the same stain to normal mouse embryos．Much to his surprise，however，Dr．Keyes found pieces of senescent cells in the normal mouse embryos．文章大意：科学实验表明，生命之初就有衰老细胞存在，发生些许衰老是必然的生理过程，对人体也是有好处的。1．What can be learned from the first paragraph？A．The general belief is false．B．Fetal human cells are the healthiest．C．The discovery by the two biologists is wrong．D．Fetal human cells are not found by the two biologists．答案：A　细节理解题。由第一段中的healthy human cells were put in a container with a steady supply of nutrients，they would multiply forever可知，普遍的认识是，健康的人类细胞可以一直分裂下去。接下来But笔锋一转，用胎儿细胞实验把这个流行的观点推翻了。由此可知答案为A项。误解分析：B、C项没有依据；D项曲解了that's not what they found的意思，what依然指的是那个错误的认识。2．What does the underlined sentence in the third paragraph mean ？A．Senescent cells reach the last place at the very start of life．B．The very start of life is the least likely place for senescent cells．C．Senescent cells grow old in a lower speed at the very start of life．D．The very start of life is the healthiest period people expect to spend．答案：B　推理判断题。由画线部分下文But．．．in embryos这一转折可知，科学家发现的(胚胎中有衰老细胞)与人们料想的刚好相反，由此可推知句意：人们最想不到的是，生命之初(胚胎期)就存在衰老细胞，与B项所述一致。3．What is the unexpected role for senescence？A．Senescence leads to aging．B．Senescence is necessary for youth．C．Senescence switches on a set of genes．D．Senescenee will promote a lively debate．答案：B　细节理解题。由第五段中的Scott Lowe．．．praised the studies for pointing to an unexpected role for senescence可知，the studies指的依然是上文的实验，而在第四段明确指出了senescence所扮演的一个出人意料的角色——youth needs a small amount of old age。即要保持青春，发生些许衰老是必然的生理过程。4．Dr．Keyes might have expected that senescent cells________．A．would be found in the normal mouse embryosB．would be found in neither kind of mouse embryosC．would be found only in both kinds mouse embryosD．would not be found in the normal mouse embryos答案：D　推理判断题。由最后一段中的Much to his surprise，however．．．可知，实验结果——正常老鼠胚胎也存在衰老细胞——在Dr．Keyes意料之外，由此可推知，Dr．Keyes原来可能认为，正常老鼠胚胎不存在衰老细胞。Ⅴ．语法填空阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。As we all know，water is necessary for our body．And to keep__1__(health)，we should make it a habit to drink water every day．Try to drink water in the morning．Keep a bottle of__2__next to your alarm clock．You can start your day by drinking water and drink eight glasses a day．Always keep a bottle of water in your hand．Keep__3__in your car or in your bag．You can get water from the food you eat，__4__(especial) fruit．During summer you can get rich water from fruit like watermelon．Regular meals is__5__way to get more water．There are various__6__of drinking water．Water helps with digestion．__7__you have heartburn or digestive problems，try downing a glass of water with your meal to help．Drinking enough water everyday will make your nails__8__(hard) and less likely to break．It can also benefit your skin．Hydrated skin can balance your skin that is too oil or__9__dry．Drinking plenty of water can prevent diseases．Water cannot stop you from__10__(visit) a doctor，but it can help your body to stay healthy．Water accounts for 60 percent or two­thirds of our actual body weight．1．______　2．______　3．______　4．______　5．______6．______　7．______　8．______　9．______　10．______文章大意：水是生命之源。为了保持健康，我们每天都要饮用适量的水。喝水还能给我们带来什么好处呢？答案：1．healthy　根据全篇语境和最后一段中的stay healthy可知，此处应用名词healthy。2．water　根据文中的Try to drink water．．．drinking water．．．keep a bottle of water等不难分析，此处应用water。3．it　由上文中的keep a bottle of water in your hand可知，此处该用代词it指代a bottle of water。4．especially　根据语境并分析句子结构可知，此处应用副词，故填especially。5．another　上文提到的you can get rich water from fruit like watermelon是一种获取水分的有效方法，而此处的regular meals是另一种获取水分的途径，故用another。6．benefits　根据下文列举的Water helps with digestion等分析可知，喝水会带来很多益处，又由空格前的various可知此处应填benefits。7．If/When　分析句子结构可知此处应用if引导条件状语从句或用when引导时间状语从句。8．harder　由下文中的less likely to break中的less可知，此空应填形容词的比较级形式。9．too　根据上文的信息词balance your skin．．．too oil  or以及下文的dry可知，此空应填too，修饰dry。10．visiting　根据stop sb from doing结构可知，此处应用visit的动名词形式visiting。Ⅵ．短文改错(2015·课标全国Ⅱ)One day，little Tony went to a shopping center with his parent．It was very crowded．Tony saw a toy on a shop window．He liked it so very much that he quickly walked into the shop．After looks at the toy for some time，he turned around and found where his parents were missing．Tony was scared and begun to cry．A woman saw him crying and telling him to wait outside a shop．Five minutes later，Tony saw parents．Mom said，“How nice to see you again！Dad and I were terrible worried．”Tony promised her that this would never happen again．答案：One day，little Tony went to a shopping center with his ．It was very crowded．Tony saw a toy  a shop window．He liked it so very much that he quickly walked into the shop．After  at the toy for some time，he turned around and found wherethat或where his parents were missing．Tony was scared and  to cry．A woman saw him crying and  him to wait outside  shop．Five minutes later，Tony saw  parents．Mom said，“How nice to see you again！Dad and I were  worried．”Tony promised her that this would never happen again．