高中英语 Unit1 Great scientists课时作业（三）新人教版必修5.doc

great scientists 课时作业(三)i单词拼写1. we need more_(确切的) evidence to prove his innocence(清白).2. in the game the women will_ (竞争) with the men for the gold medal.3. he_ (拒绝)my friendly advice.4. it seemed the only_(合乎常理的) thing to do.5. he doesnt know much about the subject, but hes very_(热心的).短语翻译 6为做准备_ 7对要求严格_ 8导致；通向_ 9有意义_ 10向后移动_ 11有时，不时_ 12鼓励某人干某事_ 13执行；实行_ 14观点_ 15按逻辑顺序_ 16做选择_ 17回到某地_ 18同样的结论_ 19在天空中_ 20由于那个原因_句型转换21. i find it hard to learn english well in such a short time.i find _ _ _to learnenglish well in such a short time.22. he lay in bed, reading a book.he lay in bed _ _a book.23. his carelessness led to the accident.the accident_ _ his carelessness.24. please explain this rule to me.please explain_ _ _ _25. we should base our theory on facts.theory_ _ _ _facts.单项填空26 .the quarrel _the fighting between the two villagers.a. brought b. led toc. caused to d. took27. _ we move the picture over there? do you think it will look better? i cant agree with you more. a. what you think b. what if c. even if d. only if28. i advised him not to smoke, but he_ listen to me.a. wouldnt b. couldntc. usednt d. had better not29._he was tired, he still went on working hard.a. for b. thoughc. as d. since 30.i had to speak loud to make myself_.a. hear b. heardc. hearing d. to hear31 .his_ speech encouraged us greatlyand we are full of_ now.a. encouraging; courageb. couraging; couragec. courage; encouraged. couraged; couragement32. we found_ impossible to finish the work on time.a. that b. whichc. it d. this33. many difficulties have _as a result of the change over to a new type of fuel.a. risen b. arisenc. raised d. arose34._, i lost heart in english learning, but my teacher often said to me. keep on working hard; youll succeed_.a. at a time; in timeb. at a time; on timec. at one time; in timed. at one time; on time35._ two exams to worry about, i have to work really hard this weekend. a. with b. besidesc. as for d. because of36. he_ words.a. was attacked at b. attacked with c. attacked d. was attacked by37. he was a heavy smoker. i_ him to give up smoking but he just wouldnt listen.a. suggested b. tried to persuadec. persuaded d. managed38. why! i have nothing to confess. _ you want me to say? a. what is it that b. what it is that c. how is it that d. how it is that39.you should try to get a good nights sleep _much work you have to do. a. however b. no matterc. although d. wherever40. theres coffee and tea ;you can have_.thanks. a. either b. eachc. one d. itv阅读理解aelijah mccoy (1843 1929), a mechanical engineer, worked with locomotives and parts of locomotives. he invented a self-lubricating( 自动加油) machine. the machine makes it possible for machines to lubricate themselvesto put oil on themselves, that is.mccoy, a black man who was the son of slaves, called his first lubricating machine a lubricator cup. the cup allowed small drops of oil to drip continuously onto the moving parts, keeping the machine in good running order.as slaves , mccoys parents lived in kentucky. they fled from the united states and settled in canada. elijah was born in colchester, ontario, canada, in 1843. mccoys father worked hard in canada with pride, he sent elijah to edinburgh , scotland. the boy was then fifteen years old. elijah mccoy attended a school of engineering in edinburgh. he studied mechanical engineering. upon completing his studies, mccoy returned to the united states. no one wanted to hire a black man as a mechanical engineer. finally mccoy took a job as a fireman for the michigan central railroad.mccoy shoveled (铲) coal and oiled the moving parts of the locomotive. this was a hard job for a mechanical engineer! but mccoy gave some thoughts to his work. suddenly he had an idea. why couldnt a train oil itself? mccoy then invented the self-lubricating machine.perhaps you have heard the expression the real mccoy. the expression is applied (应用)to high quality tools and machines. railroad men who used the self-lubricating machine boasted ( 自夸)of having the real mccoy.41. mccoys first invention was_.a .a machine used to make other machines lubricate themselvesb. some cups which could put oil on themselvesc. a kind of cup used to drop oil to itselfd. a machine which dripped continuously and always kept in good running order42. mccoy _and returned to the us after completing his study of engineering.a. left the us with his parents when he was 15b. left canada for scotland in 1858c .fled from the us and came to canada in 1843d. with his parents came to scotland when he was a slave in the us43. mccoy was a famous american _, who invented a self-lubricating machinea. son of slavesb. firemanc. mechanical engineerd. real mccoy44. it was unfair that_.a. a black man took a job as a firemanb. a train couldnt oil itselfc. the real mccoy was applied to tools and machinesd .an engineer should be offered a job of shoveling coal and oiling machines45. mccoy not only invented a lubrication machine, he also_.a. was the real mccoyb. added a phrase to the english languagec. invented many other lubricating machinesd. could make trains keep in good running orderbenrico fermi(费迷) ,a famous italian physicist, was one of the inventors of the atom bomb (原子弹). in 1938, he had won the nobel prize for physics. like all famous scientists, he had his own working style. he preferred the most direct way for an answer. and he was especially good at making difficult problems easier by dividing them into small manageable ones.on a monday morning in july 1945, the worlds first atom bomb exploded in the new mexico desert forty seconds later, the explosions shock wave reached the base camp where scientists had been waiting anxiously for the result.before the explosion, fermi had torn a sheet of paper from his notebook into bits. as he felt the first shock of the wave, he let out the hits above his head. they flew down and landed about two and a half yards behind him. after a mental calculation (心算 ) , fermi announced that the bombs energy was equivalent to (等于)10 000 tons of tnt. advanced instruments, which took weeks to analyze the waves velocity (速度) and pressure (压力), proved that fermis estimation (估算) on the spot was correct.how could he know the exact information right after the explosion? by measuring the speed with which air was pushed back by the explosion. fermi could estimate the total energy spread in the atmosphere. knowing how much energy a ton of tnt could give, he could then tell the amount of energy from the atom-bomb explosion in terms of the tonnage to tnt.46. the worlds first atom bomb exploded ina. a desert of america b. mexico c. hiroshima, japan d. germany47. which is not mentioned in the first paragraph?a. fermi had an unusual way to make problems easier to solve.b. fermi was from italy.c .fermi was like all the famous scientists who had a different working style.d. fermi like the most direct way to an answer better.48. before the explosion, fermi had torn a sheet of paper from his notebook into bits_.a. for he had got nothing to dob. so that they would fly down and land two and a half yards awayc. in order to get information for the advance instrumentsd. in order to get data (数据) for his mental calculation49. it was by_ that fermi