1、课时作业(二十三)必修5Unit 3 Life in the future限时：30分钟.单项填空1Well, honey, Im sorry but I have to board._， and God bless you when you are in Libya.AEnjoy yourself BDo take careCHave a nice trip DMind your steps2The train is running _ 120 kilometres an hour.Aat a speed Bat the speedCat a speed of Don a speed of3
2、It shames me to say it, but I told a lie when _ at the meeting by my boss.Aquestioning Bhaving questionedCquestioned Dto be questioned4When _ about one of the biggest problems today, many people say that an energy crisis is approaching and is threatening mankinds survival.Aasking Bbeing askedChaving
3、 asked Dasked5After studying in a medical college for five years, Jane _ her job as a doctor in the countryside.Aset out Btook overCtook up Dset up6The _ on his face told me that he was angry. Aimpression BsightCappearance Dexpression7_ and happy, Tony stood up and accepted the prize. A. Surprising
4、BSurprisedCBeing surprised DTo be surprising8Most of the artists _ to the party were from South Africa.Ainvited Bto inviteCbeing invited Dhad been invited9The cost of living in Glasgow is among the lowest in Britain, _ the quality of life is probably one of the highest. Asince BwhenCas Dwhile10It wa
5、s not what you said but _ you did _ made me angry.Awhy; what Bwhat; thatCthat; which Dhow; what11Plenty of vegetables and fruits will _ your recovery.Aspeed up Bdevelop upCsweep up Dput up12He thought _ of the love that had made him sad.Afor an instant Bof an instantCabout an instant Dover an instan
6、t13Who is considered _ the telephone, do you know?Ainventing Bhaving inventedCto have invented Dto invent14We havent heard from Diana for a long time.What do you think _ her?Ahas happened to Bto happen toChas happened on Dwas happening to15Jumping out of _ airplane at ten thousand feet is quite _ ex
7、citing experience.A/; the B/; anCan; an Dthe; the.阅读理解The plan: turn Mars into a blue world with streams and green fields, and then fill it with creatures(生物) from the earth.This idea may sound like something from a science fiction (科幻小说), but it is actually being taken seriously by many researchers
8、. This suggested future for the “red planet” will be the main topic for discussion at an international conference hosted by NASA (美国宇航局) this week.Leading researchers as well as science fiction writers will attend the event.It comes as NASA is preparing a multibilliondollar Mars research programme.“
9、Turning Mars into a little earth has long been a topic in science fiction，”said Dr Michael Meyer, NASAs senior scientist for astrobiology (太空生物学)“Now, with scientists exploring the reality, we can ask what are the real possibilities of changing Mars.”Most scientists agree that Mars could be turned i
10、nto a little earth, although much time and money would be needed to achieve this goal. But many experts are shocked by the idea.“We are destroying our own world at an unbelievable speed and now we are talking about ruining another planet，” said Paul Murdin, of the Institute of Astronomy, Cambridge,
11、UK.Over the past months, scientists have become increasingly confident they will find Martian life forms.Europe and Americas robot explorers have found proof that water, mixed with soil, exists in large amounts on the planet.In addition, two different groups of scientistsannounced on March 28 that t
12、hey had found signs of methane (甲烷) in the Martian atmosphere (大气)The gas is a waste product of living creatures and could be produced by microbes (微生物) living in the red planets soil. But scientists such as Dr Lisa Pratt, a biologist at Indiana University, say that these microbes will be put in dan
13、ger by the little earth project.“Before we have even discovered if there is life on Mars, we are talking about carrying out projects that would destroy all these native life forms, all the strange microbes that we hope to find buried in the soil，” said Dr Pratt.This view is shared by Monica Grady, a
14、 planetary scientist at the Natural History Museum, London.“We cannot risk starting a global experiment that would wipe out the precious information we are looking for.” she said, “This is just wrong.”16The passage is about_.Aa plan turning Mars into a little earthBthe necessity of changing MarsCMar
15、s supporting lifeDfinding water in the Mars17Which of the following is NOT the reason why some scientists are against the plan?AThe project would wipe out all the native life forms on the Mars.BThe project will cost too much money and work.CWe would ruin Mars.DWe are destroying our own world at an u
16、nbelievable speed.18We can infer from the passage that_.Awater is a crucial factor for lifeBthe project will have little effect on the native life forms supposed to live on the MarsCMonica Grady is in favour of carrying out the little earth projectDthe idea turning Mars into a little earth is nothin
17、g but a science fiction19Which of the following supports the conclusion of microbes living in the Mars soil?AScientists found liquid water in the Mars.BScientists found signs of methane in the Martian atmosphere.CScientists found a lot of good soil on the Mars.DScientists found some creatures living
18、 on the Mars.短文改错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处起)不计分。Dear Linda，We have some excited news for you. Maria is going to have a baby! We dont tell y
19、ou right away. At first the doctor said she might have some trouble of the baby. Now he says she is just fine. She still works on his paintings every day. But she stopped from teaching her art classes. There is going to have another big change in our life. Were moving back to New York! Its very much nicer to be near the families for something important like a baby. Maria grew up in Mexico，but she doesnt have a family here. So that makes even more important to us. Yours，Dick
