1、新提升课时作业.用所给词的适当形式填空1A _ (violence) tornado hit a village in southwest of China the other day.2As we all know, a bad eating habit is _ (harm) to ones health.3Do you believe that there is the _ (exist) of ghosts?4He often says that he doesnt believe in any _ (religious)and only believes in himself.5_
2、(like) what he said, he didnt carry out his promise.6There is a _ expression on his face because of the _ problem. (puzzle)7To us the whole _ (global)is like a family.8If a person or thing is _ (chain) to something, they are fastened to it with a chain.9The customers have _ (multiply) their demands
3、on this kind of products in the past two years.10We need many powerful _ (system)to keep a stable society running smoothly (顺利地)答案：1.violent 2.harmful 3.existence 4.religion 5.Unlike 6.puzzled; puzzling 7.globe 8.chained 9.multiplied 10.systems.用适当的介词或副词填空1We have, _ our turn, become the strongest t
4、eam in our school.2It took her a long time to cool _ after the argument.3He stayed in the background to escape _ the public attention.4On October 17, at 9：25 am, she gave birth _ a beautiful baby girl.5A person, _ a machine, is not replaceable.答案：1.in 2.down 3.from 4.to 5.unlike.完成句子1The other day t
5、he cat _ three kitties. (birth)几天前这只猫生了三只小猫。2If you fly to Shanghai, you will _. (attend)如果你乘飞机去上海，你就能够及时赶上出席会议。3Now it is _ the room. (turn)现在轮到我们打扫房间。4The polluted water can _. (harmful)污染的水会对环境造成很大的危害。5His father _ work in another city. (prevent)他父亲阻止他去另一个城市工作。6Man is born free, but _. (chain)人生来
6、是自由的，然而他却无处不受束缚。7_ so hardworking. (unlike)那么勤奋不像他平常的样子。8Nowadays, there are still many people wondering _. (existence)现在仍有很多人想知道，地球是何时开始存在的。9The student _. (puzzled)这个学生对下一步做什么感到困惑。10They often _. (argue)他们之间经常吵架很凶。答案：1.gave birth to 2.be able to attend the meeting in time 3.our turn to clean 4.be
7、very harmful to the environment 5.prevented him from going to 6.everywhere he is in chains 7.Its unlike him to be 8.when the world came into existence 9.was puzzled about what to do next 10.argue with each other violently.完形填空Space is a dangerous place, not only because of meteors (流星) but also beca
8、use of rays from the sun and other stars. The atmosphere again acts _1_ our protective blanket on _2_. Light gets through, and this is essential _3_ plants to make the food which we _4_. Heat, _5_，makes our environments tolerable and some ultraviolet (紫外线的) rays penetrate the _6_. Cosmic (宇宙的) rays
9、of various kinds come _7_ the air from outer space , but _8_ quantities of radiation from the sun are screened off. _9_ men leave the atmosphere they are _10_ to this radiation, _11_ their spacesuits or the walls of their spacecraft，if they are inside, _12_ prevent a lot of radiation damage. Radiati
10、on is the greatest known danger to explorers in _13_. Doses of radiation are measured in _14_ called “rems (雷目)”. We all _15_ radiation here on earth from the sun，from cosmic rays and from radioactive minerals. The “_16_” dose of radiation that we receive each year is about two millirems. It _17_ ac
11、cording to where you live, and this is a very rough estimate. Scientists have the reason to think _18_ a man can _19_ far more radiation _20_ without being damaged. The figure of 60 rems has been agreed.1A.for Bwith Con Das2A.stars Bsun Cearth Dspace3A.with Bfrom Cunder Dfor4A.use Blive Ceat Dget5A.
12、again Balso Cbesides Dtoo6A.environment Bspace Catmosphere Dearth7A.across Bto Cfrom Dthrough8A.valid Benormous C. various Dproper9A.As soon as BAs well as CAs much as DAs possible as10A.shown Bexposed Cfaced Dcovered11A.but Bbecause Cso Dso that12A.get Bmake Chave Ddo13A.earth Batmosphere Cspace De
13、nvironment14A.pieces Bunits Cparts Dsystems15A.receive Baccept Cbring Dcatch16A.conventional Bcommon Cgeneral Dnormal17A.puzzles Bfloats Ccombines Dchanges18A.what Bwhich Cthat Dwhy19A.put up with Bkeep up with Ccome up with Dcatch up with20A.from Bthan Cas Daway答案与解析：本文是一篇说明文。太阳和其他星体发出的射线对人类既有利又有弊，
14、那么大气层对此又是如何起作用的呢？人们能承受的安全射线数是多少雷目呢？1解析：act for 代表，代理；act on 按照行事；act as 充当，起作用。句意：大气层再次对我们起到保护伞的作用。答案：D2解析：由上题可知大气层起到保护伞的作用，保护的应该是地球。故选 C 项。答案：C3解析：be essential for 对来说是首要的、基础的，为固定搭配。答案：D4解析：由题意可知植物依靠阳光来制造我们吃的食物，故选 C 项。答案：C5解析：句意：热能也能使我们的生活环境温度适宜，并且一些紫外线可以穿透大气层。also 一般紧跟动词；besides 一般用在句首；too 可用在句中，用
15、逗号隔开。答案：D6解析：根据上题所讲，penetrate(穿透)这个动词后面应接 atmosphere“大气层”这个名词。答案：C7解析：这里的 come through 相当于 penetrate“穿透” 。come across 偶遇；come to来到；come from 来自。句意：各类来自外部空间的宇宙射线穿透大气层故选through。答案：D8解析：valid 有效的；various 各种各样的；proper 合适的。在四个选项中只有enormous 表示“大量的” 。答案：B9解析：as soon as 一就 ；as well as 除之外还；as much as 和一样多；a
16、s possible as 尽可能。句意：人类一离开大气层就会接触到射线故选 A 项。答案：A10解析：be exposed to 暴露于；show 展示；face 面对；cover 覆盖，涉及，包含。根据句意应选 B 项。答案：B11解析：本句前半句的意思：人们一离开大气层就会接触射线；后半句的意思：他们的太空服和太空船的外壁会阻止射线造成的损害。前后应该是转折关系，故用 but。答案：A12解析：“do动词原形”结构强调谓语动词。答案：D13解析：由 radiation 和 explorers 可推测，应选 space(太空)。句意：射线是探险者在太空遇见的已知的最大危险。答案：C14解析
17、：piece 碎片；unit 单位，单元；part 部分；system 体系，系统。句意：射线的多少可以以“雷目”这个测量单位来测量。答案：B15解析：receive 表示客观收到；accept 表示主观接受。我们是受到辐射而非主观接受。答案：A16解析：conventional 传统的； common 共同的，普通的；general 一般的，总体的；normal 正常的。句意：我们每年接受的正常辐射量大约为 2 毫雷目。故选 normal。答案：D17解析：puzzle 使迷惑；float 漂浮；combine 结合；change 变化。由句意“所处地点不同，所受辐射量也不一样”可确定答案为
18、 D 项。答案：D18解析：本句应填入引导宾语从句的连接代词，而从句不缺少主语和宾语，因而不选择 what 和 which，加之主句是陈述语气，故选择 that。答案：C19解析：put up with 忍受，符合语境； keep up with 和 catch up with 意为“跟上” ；come up with 意为“提出” 。答案：A20解析：与前面的 more 相对应。答案：B.阅读理解Astronomy is the oldest science known to man. Thousands of years ago man looked at the stars and wo
19、ndered about the heavens. But man was limited by what he could see with his eyes alone.The Greeks studied astronomy over 2,000 years ago. They could see the size, color, and brightness of stars. They could see their places in the sky. They watched the stars move as the seasons changed. But the Greek
20、s had no tools to help them study the starry heavens.Each new tool added to the files of astronomy; it helped man reach out into space. Until there were telescopes(望远镜 ), man knew little about the moon. They did not know that the planet called Saturn (土星) has rings around it. Their sight was so limi
21、ted that they could not see all the planets. In the early 1700s, people thought there were only six planets.Before the spectroscope (分光镜 ), man did not know what kind of gases are in the sun or other stars. Without the radio telescope (电波望远镜) we did not know that radio noises come from far out in sp
22、ace.Today, astronomy is a growing science. We have learned more in the last fifty years than in the whole history of astronomy.1The passage mainly tells us _.Athe spectroscope helps man know what kind of gases are in the sun and other starsBthere are eight planets in spaceCthere was much noise in sp
23、aceDscience cant grow fast without modern technology2Thousands of years ago, _.Aman watched the stars with their eyesBtelescopes helped man to study the starsCman knew nothing about the skyDman knew Saturn has rings around it3When the Greeks watched the stars, they knew all of the following except _
24、.Athe color of the starsBthe size of the starsCthe movement of the starsDwhat the stars were made of4Man now knows _.Athe moon has rings around itBthere are six planetsCSaturns rings can be seen by human eyesDradio noises come from far out in space答案与解析：1解析：主旨大意题。文章第一段为主题段，此段的最后一句话为主题句，其他段都是围绕这一主题展开，故答案选 D。答案：D2解析：细节理解题。由第一段第二、三句话可知，在几千年前人们主要通过肉眼来观察星球。答案：A3解析：细节理解题。由第二段可知，只有 D 项的内容“星球是由什么组成的”没有提到。答案：D4解析：推理判断题。由第四段最后一句可推知，现在人们已经知道无线电噪声来自遥远的外太空。答案：D
