多做练习题！祝你成功！
1、The____of this book explains how the chapters are organized.
A.guidance
B.introduction
C.instruction
D.remark
2、He is my____by three years.
A.colleague
B.junior
C.fellow
D.age
3、Come at your____ because I will be there at all the time.
A.disposal
B.rate
C.thought
D.convenience
4、Her work has____to our understanding of this difficult subject.
A.added
B.helped
C.Amounted
D.Enabled
5、The ____manager will have an interview with some job applicants next week.
A.personal
B.personnelC. Permission D. Staff
C.permission
D.staff
6、You are not quite ____when you call a computer an “electronic brain".
A.right
B.correct
C.exact
D.Accurate
7、The beautiful scenery of the West Lake____thousands of visitors to Hangzhou each year.
A.appeals
B.attracts
C.directs
D.catches
8、Her hard work will____her the respect of her fellow workers.
A.achieve
B.require
C.earn
D.indicate
9、He_____the letter carefully before putting it in the envelope.
A.turned
B.carved
C.folded
D.Pressed
10、The hero in the story is an____character.
A.imagine
B.imaginary
C.imaginative
D.imagination
11、The government has (launched) a massive campaign against crimes in the big ities.
A.proposed
B.decided
C.begun
D.studied
12、It is very (considerate) of you to remember my birthday.
A.thoughtful
B.considerable
C.careful
D.concerned
13、I was (amazed) at the beauty of the mountain when I reached the top.
A.excited
B.astonished
C.happy
D.shocked
14、He certainly made (profitable) use of the lesson he had learnt.
A.expensive
B.dear
C.precious
D.valuable
15、My life is more (precious) to me than my property.
A.valuable
B.profitable
C.dear
D.noble
16、He made a great show of (reluctance), but finally accepted my offer.
A.emotion
B.unwillingness
C.anger
D.postpone
17、His success in work has (tempted) many to try this new method
A.attracted
B.called
C.inspired
D.implied
18、She could fix the machine without (referring) to the instructions.
A.understanding
B.observing
C.consulting
D.obtaining
19、I didn’t have much confidence in my (talent) as a film actor.
A.wisdom
B.gift
C.performance
D.show
20、Her death was a great grief to him and I doubt if he ever (r***vered) afterwards.
A.got by
B.got through
C.got on
D.got over
21、第一篇 Sleep Sleep is part of your daily activity cycle, but there are several different t ypes or stages of sleep and they too occur in cycles. If you are an average sleep er, your sleep cycle will go something like this: When you first drift off into sleep your eyes will roll about a bit, your tem perature will drop slightly, your muscles will relax, and your breathing will slow and b***me quite regular. Your brain waves slow down a bit too. This is called Stage 1 sleep. For the next half hour or so, as you relax more and more, you will drift down through Stage 2 and Stage 3 sleep. The lower your stage of sleep, the slower your brain waves will be. Then, about 40-60 minutes after you lose consciousness, you will have reached the deepest sleep of all. Your brain waves will show the delta rhythm. This is S tage 4 sleep. You may think that you stay at this deep fourth stage all the rest of the nig ht, but that turns out not to be the case. Instead, about 80 minutes after you fal l into sleep your activity cycle will increase slightly. The delta rhythm will disappear, to be replaced by the activity pattern of brain waves. Your eyes will begin to move around under your closed eyelids as if you were looking at somet hing occurring in front of you. This period of Rapid Eye Movements lasts for som e 8-15 minutes and is called REM sleep. During both light and deep sleep, the muscles in your body are relaxed but ca pable of movement. However, as you slip into REM sleep, a very odd thing occurs ? Most of the voluntary muscles in your body b***me paralyzed. Although your brai n shows very rapid bursts of neural activity during REM sleep, your body is inca pable of moving.The lower the stage of sleep,____.
