英语完形填空Directions:There are 20 blanks in the following passag

英语完形填空
Directions:There are 20 blanks in the following passage.For each blank there are four choices marked A),B),C) and D) on the right side of the paper.You should choose the ONE that best fits into the passage.Then mark the corresponding letter on the Answer Sheet with a single line through the centre.
For the past two years,I have been working on students’ evaluation of classroom teaching.I have kept a record of informal conversations __71__ some 300 students from at __72__ twenty-one colleges and universities.The students were generally __73__ and direct in their comments __74__ how course work could be better __75__.Most of their remarks were kindly __76__—with tolerance rather than bitterness—and frequently were softened by the __77__ that the students were speaking __78__ some,not all,instructors.Nevertheless,__79__ the following suggestions and comments indicate,students feel __80__ with things-as-they-are in the classroom.
Professors should be __81__ from reading lecture notes.“It makes their __82__ monotonous (单调的).”
If they are going to read,why not __83__ out copies of the lecture?Then we __84__ need to go to class.Professors should __85__ repeating in lectures material that is in the text-book.“__86__ we’ve read the material,we want to __87__ it or hear it elaborated on,__88__ repeated.” “A lot of students hate to buy a __89__ text that the professor has written __90__ to have his lectures repeat it.”
71.A) involving
B) counting
C) covering
D) figuring
72.A) best
B) least
C) length
D) large
73.A) reserved
B) hard-working
C) polite
D) frank
74.A) over
B) at
C) on
D) of
75.A) presented
B) submitted
C) described
D) written
76.A) received
B) addressed
C) made
D) taken
77.A) occasion
B) truth
C) case
D) fact
78.A) on
B) about
C) at
D) with
79.A) though
B) whether
C) as
D) if
80.A) dissatisfied
B) unsatisfactory
C) satisfied
D) satisfactory
81.A) interfered
B) interrupted
C) discouraged
D) disturbed
82.A) voices
B) sounds
C) pronunciation
D) gestures
83.A) hold
B) leave
C) drop
D) give
84.A) couldn’t
B) wouldn’t
C) mustn’t
D) shouldn’t
85.A) refuse
B) prohibit
C) prevent
D) avoid
86.A) Once
B) Until
C) However
D) Unless
87.A) remember
B) argue
C) discuss
D) keep
88.A) yet
B) not
C) and
D) or
89.A) desired
B) revised
C) required
D) deserved
90.A) about
B) how
C) but
D) only

71.选A.此处意为"涉及大约300个学生至少21所高校的非正式谈话"
72.选B.at least固定短语"至少"
73.选D.A）含蓄的 B）努力的 C）礼貌的 D）坦白的
74.选C.Comment on 为固定搭配,意为"对…的评价"
75.选A.present的意思是：to bring to sb's notice directly.
76.选C.made mark 是固定搭配译为讲话
77.选C.by the case译为“在…情况下”
78.选B.speak + abont表论及；…涉及
79.选B.此处意为"正如以下建议所暗示的…"
80.选A.A）令我不满的 B）没有这个形容词 C）没有这个形容词 D）称心如意的
81.选C.A）、B）、D）意思是"打扰" C） 不鼓励
82.选A.A）噪音,说话的声音 B）声响,声音 C）发音 D）手势
83.选D.give out 固定短语"分发"
84.选D.should可代表有个人感情色彩,且表将来发生的事情的可能性
85.选D.avoid doing sth避免做某事
86.选A.此处意为"一旦我们读材料,我们希望讨论它或是听到详尽的说明,而不是简单的重复".
87.选C.A）记住 B）争论,争吵 C）讨论 D）保存
88.选B.参考86解释,故选择not.B为答案.
89.选C.A） required text 必须的课本
90.选D.此处意为"仅仅为了…"