北语大学英语一作业1

北语大学英语一作业1
1.Although he was badly hurt,he ___ explain what had happened.
A.couldB.mightC.was able toD.could not
2.Researchers discovered that plants infected with a virus give off a gas that ___ disease resistance in neighboring plants.
A.contractsB.acitvatesC.maintainsD.prescribe
3.I hope ___ was involved in that accident this morning was all right.
A.anyoneB.noneC.whoeverD.who
4.The lawyer advised him to drop the___,since he stands little chance to win.
A.eventB.incidentC.caseD.affair
5.There is no ___ to the house from the main road.
A.accessB.avenueC.exposureD.edge
6.Let me write it down ___ I forget.
A.becauseB.in caseC.forD.as
7.There was such a long time at the exhibition ___ we had to wait for about half an hour.
A.asB.thatC.soD.hence
8.If I were you,I ___ accept the invitation.
A.willB.wouldC.mayD.should
9.Be careful while crossing the street.Don’t forget ___ over by a bike the other day.
A.to knockB.to be knockedC.being knockedD.to have knocked
10.He is quite sure that it’s ___ impossible for him to fullfil the task within two days.
A.absolutelyB.exclusivelyC.fullyD.roughly
11.___ you are blind,you will not miss the astonishing changes taking place in Shanghai.
A.AlthoughB.IfC.SinceD.Unless
12.Speak to him slowly ___ he can understand you better.
A.in order
B.so as
C.so that
13.Doing all the housework ___ my mother at least three hours a day.
A.spendsB.affordsC.occupiesD.spares
14.Since it is late to change my mind now,I am ___ to carrying out the plan.
A.obligedB.committedC.engagedD.resolved
15.By ___ computation,he estimated that the repairs of the house would cost him a thousand dollars.
A.coarseB.rudeC.crudeD.rough
16.Not knowing what to reply ___ such a question,we kept silent.
A./B.toC.withD.on
17.The article suggests that when a person ___ under unusual stress he should be especially careful to have a well-balanced diets.
A.isB.wereC.beD.was
18.Reading ___ the lines,I wold say that the Government are more worried than they will admit.
A.behindB.betweenC.alongD.among
19.Have you had any ___ experience for this job?
A.beforeB.previouslyC.previousD.long ago
20.The house isn't big enough for a family of four,and ___,the price is not reasonable.
A.even thoughB.furthermoreC.thereforeD.however
21.By law,when one makes a large purchase,he should have ___ opportunity to change his mind.
A.accurate
B.urgentC.excessiveD.adequate
22.He has difficulty ___ the word.
A.to pronounceB.for pronouncingC.pronouncingD.of pronouncing
23.The ___ runner can run 2miles in fifteen minutes.
A.commonB.usualC.averageD.general
24.The General Store sells clothing and many other things ___ food.
A.in additionB.except forC.apart fromD.beside
25.You ___ drive carefully.The roads are wet.
A.had betterB.would ratherC.wouldD.had better to