2015年Unit-3　Science-and-nature作业题及答案解析（6份）Unit 3 Period one.docx

Unit 3Science and naturePeriod OneWelcome to the unit & Reading.用适当的介、副词填空1Science is developing faster than we can _ think about it.2However，_ general the scientists were praised _ their wonderful scientific advance.3Instead，he thinks research efforts should concentrate _ creating new tissues and organs that can be used to cure diseases like cancer.4Cloning human embryos _ the intention of destroying them shows no respect _ human life.5Some scientists are already pushing _ with research in order to produce a cloned human baby.6China has succeeded _ producing clones of cows and goats，and continues to research ways _ which cloning can benefit mankind.7If we toy _ nature，we will have to deal with the consequences.8I would like to comment _ your article，“The perfect copy”9When reading articles about science，we often come _ difficult scientific terms.10For this reason，I also dont accept the idea of cloning humansmankind is not ready _ this.佳句翻译与仿写1On the one hand，some scientists point out that.On the other hand，many people，including some scientists，disagree and are afraid that.翻译：_仿写：一方面，天然气造成的污染较少；另一方面，天然气仍比其他能源便宜。_，natural gas causes less pollution； _，natural gas is still cheaper than other energy resources.2The first mammal to be cloned successfully from an adult cell was Dolly the sheep.翻译：_仿写：那是那年上演的第一场戏。_3China has succeeded in producing clones of cows and goats.翻译：_仿写：宇航员们按计划成功地从月球返回到地球。The astronauts _ according to the plan.4If I were the President of Italy，I would think about taking away his licence.翻译：_仿写：如果我有这个机会，我就会立即克隆她以便我又能和她在一起。_ so that I could be with her again.单项填空1Do you think it would be a good idea to clone humans_？Asome a day Banother dayCthe other day Dsome day2If I_the chance，I_a cloned baby right now.Ahave；will have Bhave；would haveChave had；will have Dhad；would have3Severino Antinori，an Italian physician，_that he wants to be the first to clone a human being.Adeclares Bdeclared Chas declared Dhad declared4In China，scientists have focused their efforts on cloning animals，as well as cloned tissues_in medical treatment.Aused Busing Cto be used Dbeing used5China has_clones of cows and goats，and continues to research ways_cloning can benefit mankind.Asucceeded to produce；thatBmanaged to produce；whichCsucceeded in producing；in whichDmanaged in producing；/6There are many children_with no parents_would be delighted to have a mother.Aon the world；they Bon the earth；whichCin the world；who Don earth；that7I think the scientific advances_in your article are fantastic!Amentioning BmentionedCbeing mentioned Dto mention8I am in complete agreement with human cloning._，scientists_moral ideas for centuries.AAbove all；have challengedBFirst of all；are challengingCAfter all；have been challengingDIn all；had challenged9On a_note，cloning would totally transform my life.Aprivate Bpublic Cown Dpersonal10You will often be amazed to discover_confused you at first makes sense upon further readings.Athat it Bwhat that Cthat what Dwhat it.阅读理解Space travel is definitely bad for astronauts bones，reducing their bone density(密度)after only a month of weightlessness，according to a French research published on Friday.Laurence Vico and his fellow workers at St. Etienne University called for more research into the effects of microgravity，after their study of 15 astronauts from the Russian MIR station showed bone loss continued throughout space flights.“Bone loss was especially striking in four astronauts，”the scientists reported in the Lancet Medical Journal.They measured the bone mineral density(BMD) of bones in the forearm(前臂)and lower leg of the astronauts who had spent one to six months in space.The BMD loss was significant in the tibia(胫骨)of the lower leg，a weightbearing bone，but barely changed in the radius(桡骨)of the forearm.“Our results indicate the need to investigate not only different bones，but also different areas of the same bone since not all sites of the skeleton(骨架)are similarly affected by space conditions，”they added.Without gravity the body isnt bearing any weight so there is no need for calcium(钙)which makes bones strong，and it becomes empty into the bloodstream.The research team suggested in future scientists should try to determine if the loss of bone density was only on weightbearing bones on longer flights，also the possible recovery after returning to Earth.1French scientists did their research on Russian astronauts，because _.Athey only cared for the Russian astronautsBthey were not interested in their own astronautsCthe Russian government invited them to do their researchDthe Russian astronauts worked in space for a long time2Scientists have found that _.Athe BMD loss may cause serious illness to astronautsBthe BMD loss may cause some change in astronauts bodiesCastronauts shouldnt care about the BMD lossDastronauts should take some calcium before space travel3What cause the BMD loss to astronauts according to this passage?AThe food they eat in space.BThe drinks they take in space.CThe temperature in space.DThe gravity in space.4In the third paragraph，the underlined word “striking” means _.Aunusual Bsimple Cweak Dslowrace n竞赛；赛跑生义：n.人种；种族；氏族They are people of same race but different culture.他们种族相同而文化不同。Our nation welcomes people of all races，colors and religions.我们国家欢迎不同种族、肤色和宗教信仰的人。 答案.1.even2.in；for3.on4.with；for5.ahead 6in；in7.with8.on9.across10.for.1.翻译：一方面，一些科学家指出。另一方面，包括一些科学家在内的很多人则持不同意见，他们担心仿写：On the one hand；on the other hand2翻译：第一只成功地用成年动物细胞克隆出的哺乳动物是多利羊。仿写：That was the first play to be performed that year.3翻译：中国已经成功地克隆出了牛和山羊。仿写：succeeded in returning from the moon to the earth4翻译：假如我是意大利的总统，我将考虑取消他的执照。仿写：If I had the opportunity，I would clone her immediately.1.Dsome day(将来)某一天；another day改天；the other day前几天；some a day无此用法。2D本题考查if引导的虚拟条件句与主句的时态。表示对将来情况的假设，if从句谓语动词用一般过去时/should动词原形/were动词不定式，主句用would/could/might动词原形。3C结合上下文语境，此处应该用现在完成时，故选C项。4C本题考查非谓语动词作后置定语的用法。using表主动，先排除；used已被使用的；to be used将被使用的；being used正在被使用的。句意为：在中国，科学家则把精力集中在克隆动物以及被克隆出来的(人、动植物细胞的)组织上，以便将来用于医学研究。故选C项。5Csucceed in doing sth.manage to do sth.成功干某事；way作为先行词引导的定语从句中不缺