龙门亮剑高三(答案)必修4 Unit 2 课时作业

课时作业（十七）Ⅰ.单项填空1．He was down with the flu，and________couldn’t come to the meeting.A．however B．otherwiseC．therefore D．besides2．Y our training will________you________your future job.A．equip；for B．be equipped；forC．equip；with D．be equipped；with3．________with the problem，the________child requested his mom to explain it again.A．Confused；confusing B．Confusing；confusedC．Confused；confused D．Confusing；confusing4．I regret________that I am unable to help you.A．saying B．sayC．to say D．said5．I’d rather you________that now，than afterwards.A．know B．to knowC．knowing D．knew6．The beams of light moved across the sky and________the plane.A．focused on B．were focused onC．focused themselves on D．focused to7．It was________your timely help that we accomplished the task on time.A．because B．forC．thanks to D．in case of8．Eating too much sugar can________health problems，so we must have a balanced diet.A．lead to B．result fromC．refer to D．devote to9．With the help of his friends，he has________a good business over the years.A．built up B．made upC．grown up D．picked up10．Ten years ago the population of our village was________that of theirs.A．as twice large as B．twice as large asC．twice as much as D．as twice much as11．Having heard my answer，the master nodded________satisfaction，“I’m quite satisfied________you.”A．with；with B．on；byC．in；to D．in；of12．—Why are they________the forest?—They are________a murderer.A．searching；searching B．searching for；searchingC．searching；in search of D．in searching；searching for13．We agreed to accept________they thought was the best tourist guide.A．whatever B．whomeverC．whichever D．whoever14．—I heard Johnson was badly injured in the accident.—________，let’s go and see him.A．What’s more B．If soC．Where possible D．When necessary15．If you want to advance yourself in your study，you’ll first have to________yourself of those shortcomings that can become barriers to progress.A．remove B．cutC．reduce D．ridⅡ.翻译句子16．我们的对外贸易近年来扩展很多。

(expand)________________________________________________________________________ 17．你为什么坚持要她立即答复你？(insist on)________________________________________________________________________ 18．由于有了这台新电脑，乘坐中国民航的乘客们能更迅速地买到机票。

(thanks to) ________________________________________________________________________ ________________________________________________________________________ 19．医生为了减轻病人疼痛给他开了一些药。

(reduce)________________________________________________________________________ 20．为了生存，他们不得不与恶劣的天气及凶猛的野兽作斗争。

(struggle for)________________________________________________________________________ ________________________________________________________________________ Ⅲ.阅读理解Stephen Hawking (January 8th,1942—) was born on the 300th anniversary of Galileo’s death.He has come to be thought of as the greatest mind in physics since Albert Einstein.Hawking grew up outside London in an educated family.His father was a physician and specialist in tropical diseases；his mother was active in the Liberal Party.From early on he wanted to study science.He became increasingly skilled in mathematics and in 1958 he and some friends built a simple computer that actually worked.In 1959 he won a scholarship to Oxford University.In 1962 he got his degree with honors and went to Cambridge University to gain a PhD in cosmology (宇宙论)．There he became crazy about black holes (first proposed by Robert Oppenheimer)．After receiving his PhD，he stayed at Cambridge，becoming known even in his 20s for his pioneering ideas and use of Einstein’s formulas，as well as his questioning of older，established physicists.In 1968 he joined the staff of the Institute of Astronomy in Cambridge and began to study black holes.Soon afterwards he made an astonishing discovery.Hawking suggested that under certain conditions，a black hole could give out subatomic particles (颗粒)．That is now known as Hawking Radiation.He continued working on the theory of the origin of the universe.At the age of 32，he received the Albert Einstein A ward.And in 1979，he was appointed Lucasian Professor of Mathematics at Cambridge.It is the most famous academic chair in the world.Since its creation 330 years ago,17 individuals have held the chair，like Sir Isaac Newton，Charles Babbage and Robert Woodhouse.There he began to question the big bang theory，which by then most had accepted.In 1988 Hawking wrote A Brief History of Time: from the Big Bang to Black Holes，explaining the evolution (发展) of his thinking about the cosmos for a general audience.It became a best－seller of long standing and established his reputation as an accessible genius.He wrote otherpopular articles and appeared in movies and on television.He remains extremely busy；his work hardly slowed by Lou Gehrig’s disease (a disease that affects muscle control) for which he uses a wheelchair and speaks through a computer and voice synthesizer (合成器)．21．Which of the following is the correct order of the information about Stephen Hawking?a．He received the Albert Einstein A ward.b．He joined the staff of the Institute of Astronomy in Cambridge and began to study black holes.c．He got his degree with honors and went to Cambridge University to gain a PhD in cosmology.d．He and some friends built a simple computer that actually worked.e．He suggested that under certain conditions，a black hole could give out subatomic particles.f．He wrote A Brief History of Time：from the Big Bang to Black Holes.A．d，c，b，e，a，f B．c，d，e，b，a，fC．d，c，e，b，a，f D．d，c，e，b，f，a22．Which of the following is Not true about Stephen Hawking?A．General audience can understand his book A Brief History of T ime，making him more popular.B．He began to doubt the big bang theory generally accepted at Cambridge.C．His educated family had a positive effect on his study and future achievements.D．Hawking devoted himself to studying the theory of black holes，which he put forward first.23．In his twenties，he began to become recognized by many people mainly because________.A．he and some friends built a simple computer that actually workedB．he was appointed Lucasian Professor of Mathematics at CambridgeC．he wrote other popular articles and appeared in movies and on televisionD．he dared to challenge established ideas and authorities on physics24．Which of the following scientists didn’t work as Lucasian Professor of Mathematics at Cambridge?A．Sir Isaac Newton B．Albert EinsteinC．Charles Babbage D．Robert Woodhouse25．The passage doesn’t talk about Hawking’s________.A．marriage B．research and discoveryC．achievements D．health conditionsⅣ.对话填空课时作业（十七）答案Ⅰ.单项填空1．C根据句意，两句话之间在逻辑上为因果关系，而且and therefore意为“因此，所以”，故选C。