清华北大家教中心 家教电话：01062561255 课时作业(二十一)必修5Unit 1 Great scientists限时：30分钟.单项填空1Daddy， look！ Why _ rainbow is like a bow？Oh， it is apologizing to _ angry sky.Athe； an Ba； /Ca； an Dthe； the2What he says makes no _ to me.Acare BsenseCinterest Dmeaning3With water _ constantly， the brave soldier jumped into the river to save the drowning villager.Ato rise Brising Crisen Drose4Can you work out the problem？I cant _ you explain how to do it.Abut for Bexcept Capart from Dunless5The State Council has _ a new economic policy on the benefits of the farmers.Aput up Bput forwardCput off Dput out6The best way _ spoken English is to speak more every day.Aof learning Bto learningCin learning Dabout learning7I feel it is your husband who _ for the spoiled child.Ais to blame Bis going to blameCis to be blamed Dshould blame8_ he came in， I recognized him.AThe moment BShortlyCSoon DBefore long9You should read the _ in the car repair manual(手册) carefully before you start.Ainstructions Bconstructions Cintroductions Dexplanations10The Prime Minister _ by saying that he was satisfied with his visit in China.Aconcluded BconductedCconsidered Dconfused11Dont stop _ you meet with a word you dont understand.Aat the time Beach timeCby the time Dsometimes12The police are searching everywhere for Mr.James， who they think is_ to the crime.Alinked Bworried Cunited Dmixed13_of being involved in the attempted murder， she was questioned by the police.AConvinced BSuspectedCCharged DConfirmed14_ you eat the correct foods_ be able to keep fit and stay healthy.AOnly if； will you BOnly if； you willCUnless； will you DUnless； you will15Mom， Im so tired. I cant walk any further._， my dear. You can make it.ACome on BNo worryCThats impossible DNo problem.完形填空John and Mary had a nice home and two lovely children， a boy and a girl. John had a good _16_ and had just been asked to go on a business trip to another city and it was _17_ that Mary needed an outing and would go along too. They _18_ a reliable woman to care for the children and made the _19_， returning home a little earlier than they had planned._20_ they drove into their home town， they found a home in flames. Mary said， “Oh well， it isnt our fire； lets go home.”_21_ John drove closer and exclaimed (惊叫)， “That home belongs to Fred Jones who works at the plant. He wouldnt be _22_ work yet. Maybe there is something we could do.”John drove up and they were both _23_ to see the whole house in flames. A woman on the lawn was in hysterics _24_， “The children！ Get the children！ They are in the basement.”_25_ Marys protests (反对)， John grabbed the water hose and soaked (浸湿)his clothes， put his wet handkerchief on his head and _26_ for the basement which was full of _27_. He found two nearly suffocated (窒息的)children and after carrying them to safety， he asked how many more children were _28_ there. They told him two more and Mary _29_ his arm and screamed， “John！ Dont go back！ Its _30_！ That house will cave in any second！”But he shook her off and went back by _31_ his way down the smokefilled hallway and into the room. It _32_ a long time before he found both children and started back and at last when they came out into the_33_ and fresh air， he found that he had just _34_ his own children.It turned out that the babysitter had _35_ them at this home while she did some shopping.16A.job Bfamily Cwife Dboss17A.known Bbelieved Cdecided Dhoped18A.asked BhiredCintended Dreminded19A.preparations BpromiseCdecision Dtrip20A.Before BAs COnce DSince21A.And BSo CNow DBut22A.off Bon Cout of Dat23A.heartbroken BconsciencestrickenChorrorstricken Dpovertystricken24A.coughing BscreamingCwhispering Dweeping25A.Apart from BIn case of CInstead of DIn spite of26A.reached BsearchedCdashed Dsent27A.smoke Bdarkness Cchildren Ddanger28A.up Baway Cout Ddown29A.pulled Btook Cgrabbed Dheld30A.dangerous Buseless Cover Dstupid31A.pushing Bfeeling Cjumping Dmoving32A.meant Bspared Cspent Dseemed33A.shade Bsunlight Cshadow Dcrowd34A.helped BfoundCrecognized Drescued35A.left BchargedCremoved Dforgotten.阅读理解Elizabeth Blackwell was born on February 3， 1821 in Bristol， England. Her father was a rich sugar businessman at the time. Because her parents thought boys and girls should be equal， Elizabeth received the same education as her brothers.