【单元试卷】人教版高中英语选修八--Unit2-Cloning-单元测试卷(一)-Word版含答案

1、号英高二下学期训练卷 选修八 unit2 cloning语 （一）equator orbit the earth at the same speed that our planet turns. a weight on the end of thecable would stretch it tight. an elevator tied to the cable could use it to climb up and down.the only problem is that besides being long, this cable must also be very strong.封

2、位座注意事项：storms, including hurricanes might break it. one way to solve this problem is to stretchthe cable from the moon instead of from the earth. airplanes designed to climb higher1 答题前，先将自己的姓名、准考证号填写在试题卷和答题卡上，并than a typical jet might take off from the earth and link up with the cable, which would将

3、准考证号条形码粘贴在答题卡上的指定位置。密2 选择题的作答：每小题选出答案后，用2b 铅笔把答题卡上对应题be held in place by the pull of gravity from the earth. an elevator car waiting therewould then take riders the rest of the way to the moon. fueled by solar power, the不号场考目的答案标号涂黑，写在试题卷、草稿纸和答题卡上的非答题区域均无效。3 非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内。elevator cou

4、ld transport people and materials without much expense or effort per ride.so, when will you be taking your first space-elevator ride? probably not for a写在试题卷、草稿纸和答题卡上的非答题区域均无效。while.4 考试结束后，请将本试题卷和答题卡一并上交。订装只卷此号证考准名姓级一、阅读理解(共 8 小题，每小题 2 分，共 16 分）athink about the longest elevator ride that youve ever

5、 taken. whether you rose fivefloors or 100, it probably took less than a few minutes. now imagine riding in anelevator higher and higher as it climbs for nearly a day. when you reach the top floor, prepare for views that are really out of this world. youll be in space!space elevators might sound lik

6、e a crazy idea, but theyre something scientists have been working on for decades.why would anyone want a space elevator? at the moment, riding in a capsule is theonly way ordinary people can get to and from space. but those rides are very expensive about $25 million per person per flight.researchers

7、 are still figuring out the details about how a space elevator might work.one idea is stretching a very long cable more than 37,000 kilometers up to space1. the first paragraph is presented by_.a. giving an exampleb. making a comparisonc. asking questionsd. analyzing causes2. why have scientists bee

8、n working on space elevators?a. to make trips to space cheaper.b. to help astronauts do research in space.c. to find a more convenient way to the moon.d. to prove an assumption which seems crazy.3. the underlined word “it” in paragraph 4 refers to _. a. the cableb. the equatorc. an object in space班f

9、rom the earths equator (赤道). the location is important: objects in space above thed. a weight on the end of the cable4. which part of a magazine may the article appear in?a. science and technology. b. sports. c. literature. d. entertainment.banimals. introducing these beasts into existing ecosystems

10、 could be like bringing in apotentially invasive species that would try to fill some space presently held by otheranimals. even if the cloned animals were contained in special parks, there could still bewithin five years, a woolly mammoth (猛犸象)will likely be cloned, according toa risk of spreading.s

11、cientists who have just recovered well- preserved bone marrow ( bone.骨髓) in a mammothso if the woolly mammoth is successfully cloned sooner rather than later, wedprobably be left with more questions and arguments than answers, at least in the shortrussian scientist siemyon grigoriev and his colleagu

12、es are now analyzing themarrow, which they obtained from the mammoth, found in siberian soil. grigoriev andhis team, along with colleagues from japan, have announced that they will start a jointresearch project aimed at recreating the enormous mammal, which went extinct around10,000 years ago. mammo

13、ths used to be a common sight in north america and eurasia.many of our distant ancestors probably had regular face-to-face encounters with the elephant-like giants.the key to cloning the woolly mammoth is to replace the nuclei of egg cells froman elephant with those extracted from the mammoths cells

14、. doing this, according to theresearchers, can result in embryos with the mammoths dna. that has actually been known for a while.what have been missing are the woolly mammoths nuclei with undam aged genes.scientists have been on a search for such nuclei since the late 1990s. now it sounds like the m

15、issing genes may have been found.in the course, global warming may be responsible for the breakthrough. warmertemperatures tied to global warming have melted ground in eastern russia that is almostalways permanently frozen. as a result, researchers have found a fair number ofwell-preserved frozen ma

16、mmoths there, including the one that produced the bone marrow.is it such a good idea, however, to clone animals that have long been extinct? for awhile there has been some discussion of a real- life jurassic park setup containing suchterm.5. which of the following would be the best title for the pas

17、sage?a. how to clone a woolly mammothb. the woolly mammoth an ancient speciesc. the research made by russian and japanese scientistsd. a woolly mammoth to be cloned6. which of the following can be the key factor in cloning a mammoth?a. to find a living mammoth in north america or eurasia.a. to use n

18、uclei from a mammoths egg cells to replace the nuclei in an elephants egg cells.a. to find out when and where woolly mammoths lived on the earth.b. to find out if ancient mammoths are distant ancestors of todays elephants.7. which of the following best describes the writers attitude towards the futu

19、re of cloning a mammoth?a. uncertain. b. indifferent. c. positive. d. disappointed.8. from the passage, we can learn that _.a. some other extinct species have been cloned successfullyb. the mammoth used to be a very common speciesc. the clone of mammoths should be banned by lawd. a woolly mammoth wi

20、ll be successfully cloned this year二、语法填空（共 10 小题，每小题 1.5 分，共 15 分）cloning has always been with us and is here to stay. it is a way of making_1_ exact copy of another animal or plant. cloning plants is straightforwardwhile cloning animals is very complicated. the process of cloning is a difficult ta

21、sk_2_(undertake). many attempts to clone mammals failed. but finally thedetermination and patience of the scientists paid _3_ in 1996 with a breakthrough-the cloning of dolly the sheep.at first the fact _4_ she seemed to develop normally was very encouraging.then came the _5_(disturb) news that doll

22、y had become seriously ill, whichmade cloning scientists cast down. meanwhile, dollys appearance raised a storm of_6_(object) and had a great impact on the media and public imagination._7_(apparent) it became controversial. although at present human egg cells andembryos _8_(need)for cloning research

23、 are hard to obtain, newspapers wrote ofevil leaders _9_(hope) to clone themselves to attain their ambitions. religiousleaders also raised moral questions. some countries reformed their legal systems and_10_(forbid) research into human cloning, but others like china and the uk,continued to accumulat

24、e evidence of the abundant medical aid that cloning could provide.三、短文改错(共 10 小题，每小题 1 分，共 10 分）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: 在错的词下划一横线, 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

25、处起)不计分。dear sir,im writing to offer some advices on our winter travel. in my opinion, a one -weektrip to a countryside cant be good. the fresh air and various activities will guarantee us a healthy life here.we may go by bike to enjoy the landscape. during the trip, we can arrange someactivities, fr

26、om what we will benefit a lot, such as playing snowballs, building asnowman, going skating and climb a mountain. we can even invite the local studentsjoin us, not only to improve their english but also to deepen their understanding of the countryside. i am confident to establish friendship and harve

27、st happy from this trip.i would appreciate it that if you could take my plan into consideration.四、七选五（共 5 小题，每小题 2 分，共 10 分）how to improve your sleep cycletry to sleep at the same time every dayyour bodys internal clock will become accustomed to going to sleep and wakingup at the same time every day

28、. going to sleep at 10 pm and waking up at 6 am is a good method of getting enough sleep. _1_g et the right mattress（床垫）h aving the right bed and mattress is very important for getting a good sleep.having an uncomfortable place to sleep at will cause you to wake up during the night.this will have a

29、negative effect on your sleep cycle. _2_ these beds can be customized for what you need._3_in the modem age, it is too easy to get distracted by technology. many people havetelevision in their bedrooms and use their smart phones when they should be sleeping. ifsomeone previously has difficulty in ge

30、tting to sleep, it is likely that he will give up andwatch a show instead. he tells himself that it will help him to get to sleep. _4_exercise regularly_5_ the afternoon or the evening is a pretty popular time for people to workout. it can sometimes be difficult if you have a full-time job, but thin

31、gs can usually be rearranged a bit.a. get rid of distractionsb. improve your sleep habitc. actually, the opposite of this is true.d. sleep can make them happy and watching am help sleep.e. adjustable beds are something that you could consider.f. having a regular exercise pattern will improve the qua

32、lity of sleep that you get.g. waking when the sun rises should leave you feeling nice and refreshed for the day ahead of you.五、书面表达（共 25 分）假定你是高二 1 班的李华，你的朋友美国学生 chris 给你发邮件说他对中国的太极拳很感兴趣，想学习，请你给些建议。请根据以下要点给他写回信。内容包括：1. 简单介绍太极拳。例如：是中国传统武术的一种；大约 400 年历史；全球有 3 亿太极拳练习者，等等。2. 给 chris 几条有关学习太极拳的建议。 注意：1. 词数