Unit 16Scientists at work

1、unit 16scientists at work.單項填空1.youve won the football game.congratulations!_.a.its nice of you to say sob.we are really luckyc.no one else could do itd.oh，not really2.i usually go there by train.why not_by boat for a change?a.to try goingb.trying to goc.to try and god.try going 3.ive got some wonde

2、rful news.really？_.a.i dont believe sob.i believe notc.i cant believe itd.i dont believe it4.they signed a petition(請愿書)_the workers demands.a.in forb.in support ofc.to go againstd.in favor for5.on saturday afternoon,mr green went to the market,_some bananas and visited her cousin.a.buyingb.buyc.bou

3、ghtd.to buy6.most of the artists_to the party were from south africa.a.invitingb.invitedc.to be invitedd.had been invited7.jim is the only one of the students who_on duty today.a.wasb.werec.ared.is8.i wonder_.a.how much does the watch costb.how much the watch costedc.how much did the watch costd.how

4、 much the watch cost9._do you think will teach us math next term？a.whomb.whoc.whatd.that10.he asked me_i thought of the new film.a.howb.whatc.thatd.which11.i didnt know_he had done with my dog.a.whereb.howc.thatd.what12.he wondered_i came here for that day.a.why b.whatc.howd.whether13.the teacher as

5、ked me_the weather was like the next day.a.howb.whatc.d.that14.the baby_the apple on the table but he was too short to_it.a.reached for;reachb.reached;reach forc.reached;reachd.reached for;reach for15.i_up late but i_up early.a.used to getting;am used to gettingb.was used to get;used to getc.used to

6、 get;am used to getd.used to get;am used to getting.完形填空many teachers believe that the responsibilities(責(zé)任)for learning lie with the students. 1 a long reading assignment(任務(wù))is given,instructors expect students to be familiar with the 2 in the reading even if they do not discuss it in class or take

7、an examination.the 3 student is considered to be 4 who is motivated(激發(fā))to learn for the sake(目的)of 5 ,not the one interested only in getting high grades.sometimes homework is returned 6 brief written comments(評語)but without a grade.even if a grade is given,the student is responsible for learning the

8、 material assigned.when research is assigned,the professor expects the student to take it actively and to complete it with minimum(最少)guidance（指導(dǎo)）.it is the 7 responsibility to find books,magazines,and articles in the library.professors do not have the time to explain 8 a university library works;th

9、ey expert students,particularly graduate students,to be able to exhaust（詳細(xì)研究）the reference（參考）sources in the library.professors will help students who need it,but 9 that their students should not be 10 dependent（依靠）on them.in the united states professors have many other duties 11 teaching,such as ad

10、ministrative（管理）or research work. 12 ,the time that a professor can spend with students outside of class is 13 .if a student has problems with classroom work,the student should either 14 a professor during office hours 15 make an appointment.1.a.ifb.althoughc.becaused.since2.a.suggestionb.contextc.a

11、bstractd.information3.a.poorb.idealc.averaged.disappointed4.a.suchb.onec.anyd.some5.a.funb.workc.learningd.prize6.a.byb.inc.ford.with7.a.studentsb.professorsc.assistantsd.librarians8.a.whenb.whatc.whyd.how9.a.hateb.dislikec.liked.prefer10.a.toob.suchc.muchd.more11.a.butb.exceptc.withd.besides12.a.howeverb.thereforec.furthermored.nev