2015-2016学年高中英语 Unit 4 Astronomy the science of the stars PartⅠWarming Up & Reading双基限时练(含答案解析）

双基限时练 Unit 4　Part Ⅰ
Ⅰ.单句语法填空
1. In 2015, a ________ (violence) explosion happened in Tianjin.
答案　violent
2. Forming a good habit of studying is fundamental ________ one's achievements in the years to come.
答案　to
3. Now we still don't know whether life ________ (exist) on Mars.
答案　exists
4．We usually take turns ________ (do) cleaning, and today it is my turn ________ (do) it.
答案　to do; to do
5．There is a ________ (puzzle) look on her face. Actually, she felt ________ (puzzle) about all of this.
答案　puzzled; puzzled
6．________ Alice will be able to get help for the rescue is not certain yet.
答案　Whether
7．She made ________ her duty to look after the old woman in her spare time.
答案　it
8．Cindy didn't leave the office last night ________ she finished her job.
答案　until
9．Although the traffic was heavy, I managed to be ________ time for the important lecture.
答案　in
10．It is ________ (unlike) that he will come to help soon because he has just gone out.
答案　unlikely
Ⅱ.阅读理解
A
Edmund Halley was an English scientist who lived over 200 years ago. He studied the observations of comets (彗星) which other scientists had made. The orbit of one particular comet was a very difficult mathematical problem. He could not figure it out. Neither could other scientists who dealt with such problem.
However, Halley had a friend named Isaac Newton, who was a brilliant mathematician. Newton thought he had already worked out that problem, but he could not find the papers on which he had done it. He told Halley that the orbit of a comet had the shape of an ellipse (椭圆形)．
Now Halley set to work. He figured out (计算出) the orbits of some of the comets that had been observed by scientists. He made a surprising discovery. The comets that had appeared in the years 1531,1607, and 1682 all had the same orbit. Yet their appearances had been 75 to 76 years apart.
This seemed very strange to Halley. Three different comets followed the same orbit. The more Halley thought about it, the more he thought that there had not been three different comets, as people thought. He decided that they had simply seen the same comet three times. The comet had gone away and had come back again.
It was an astonishing idea! Halley felt certain enough to make a prediction (预言) of what would happen in the future. He decided that this comet would appear in the year 1758. There were 53 years to go before Halley's prediction could be tested.
In 1758 the comet appeared in the sky. Halley did not see it, for he had died some years before. Ever since then that comet had been called Halley's comet，in his honour.
1．Edmund Halley figured out the orbit of ________.
A. some different comets appearing several times
B. the same comet appearing at different times
C. three different comets appearing three times
D. several comets appearing at the same time
答案与解析　B　根据第四段和最后一段可得出答案。
2．Halley made his discovery ________.
A. by doing experiments
B. by means of his own careful observation
C. by using the work of other scientists
D. by chance
答案与解析　C　根据第三段内容可知，哈雷是在计算其他科学家的数据。
3．Halley made a surprising, but correct prediction in the year ________.
A. 1704 B. 1705
C. 1706 D. 1707
答案与解析　B　根据倒数第二段，1758－53＝1705。
4．This passage in general is about ________.
A. Halley and other scientists
B. the orbit of a comet
C. Newton and Halley
D. Halley and his discovery
答案与解析　D　全篇在讲述哈雷和哈雷彗星。
B
Welcome to the Astronomy (天文学) Club of Akron (ACA) webpage. The purpose of the ACA is to further an interest in and to promote the study of the subject of astronomy through the use of lectures, discussion groups, publications，programs and other activities.
The ACA will educate the general public through monthly programs. These programs, lectures and events cover the planets, solar/lunar observing, comets (彗星) showers，deep sky objects and so on.
The ACA activities provide opportunities for its general club members to get together and take part in a variety of general astronomy related matters.
Membership is open to anyone with an interest in astronomy. No equipment is necessary and no knowledge is needed. There is no age limit. Club members meet on the 4th Friday of every month at 8 a. m. at the Kiwanis Hall in Portage Lakes. During the meeting, a one hour talk will be on astronomy, space exploration or weather. The date of the meeting will change if the 4th Friday is part of a holiday weekend. Check the calendar, view the most recent newsletter (简报), send e mails or call the number listed on our home page if in doubt. The ACA publishes a monthly newsletter, The Night Sky, which contains information on the coming meetings, observing sessions and articles by members.
Club dues are $30 a year for adults (18 and over), $15 for juniors (12 to 17). The family only needs $40 a year. Welcome to our club and you can call 1 866 339 9783 to find more information about us.
5．The ACA is really a(n) ________.
A. webpage B. club
C. office D. magazine
答案与解析　B　根据文章第一段的第一句“Welcome to the Astronomy Club of Akron (ACA) webpage”可知， the ACA是一个俱乐部。故该题的正确答案为B项。
6．From the passage, we can know the ACA wants to ________.
A. make much money
B. get more people interested in astronomy
C. sell equipment
D. hold more meetings
答案与解析　B　根据文章第一段的第二句“... further an interest in and to promote the study of the subject of astronomy ...”可知，这个组织是想推动广大群众对天文学的兴趣。故该题的正确答案为B项。
7．If you wonder when the meeting will be held, you can do all of the following EXCEPT ________.
A. visit the manager's office
B. consult the latest The Night Sky
C. call the number listed on the home page
D. send e mails
答案与解析　A　根据文章第四段的最后两句“Check the calendar, view the most recent newsletter, send e mails, or call the number listed on our home page if in doubt.The ACA publishes a monthly newsletter, The Night Sky, which contains ...”可知，本题应选A项。
8．How much should Lucy and her parents pay a year if they join the club
A. $75. B. $60.
C. $40. D. $15.
答案与解析　C　从题干看应是Lucy一家人，故应按“The family only needs$40 a year”付费。故该题的正确答案为C项。
Ⅲ.语法填空
When I was little, Grandma taught me how to dance, and she made beautiful clothes for my dolls. She was my special friend, but I had no idea just how special she was __1__ I was in ninth grade.
Since my family did not have much money, I knew I would never be able __2__ (buy) a great dress for the school dance. That did not stop me from __3__ (dream), however. Many nights, after I __4__ (finish) my homework, I would sketch (素描) the “perfect” dress. I kept all the sketches on my bedside table. I guess I figured that was a good place to store impossible dreams.
One Monday, Mom and Grandma agreed that __5__ should start shopping for my dress. I feared to shop for it; I knew I would never find anything close __6__ my “perfect” dress. Nevertheless, we __7__ (decide) that we would shop for it on Saturday.
That Friday night at dinner, Grandma seemed __8__ (unusual) cheerful, so I asked her why. “Oh, Natalie! I have __9__ surprise，” she sang, like a happy little bird, and she reached under the table to pull out a huge, flat box. When I opened it, I burst into __10__ (tear). Grandma had made my “perfect” dress!
答案　1.until　2.to buy　3.dreaming　4.(had) finished　5.we　6.to　7.decided　8.unusually　9.a　10.tears