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1、Unit4 Space Exploration Section C Discovering Useful一、完成句子1Have you _ (弄明白) why she didnt invite you to her birthday party?2Doctors examine their patients thoroughly _ (为了) make a correct diagnosis.3We can not work all the time if we are going to _ (保持健康) and enjoy life.4.on 12 April 1961, Yuri Gaga
2、rin became _ (第一人) in the world _ (进入太空)5In space, astronauts collect all dirty water _ (以便重新使用) it for later use.二、阅读理解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 (轨道) of one particular co
3、met was a very difficult mathematical problem. He could not figure it out. Neither could other scientists who dealt with such problems.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
4、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)Then Halley set to work. He figured out 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, 160
5、7, and 1682 all had the same orbit. Yet their appearance had been 74 to 79 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 decide
6、d 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 though (然而) to make a prediction (预言) of what would happen in the future. He decided that this would appear in the year 1758. There were 53 years to
7、 go before Halleys 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 has been called Halleys comet, in his honour.1Edmund Halley figured out the orbit of _.Asome different comets appearing several t
8、imesBthe same comet appearing at different timesCthree different comets appearing at the same timeDseveral comets appearing at the same time2Halley made his discovery _.Aby doing experimentsBby means of his own careful observationCby using the work of other scientistsDby chance3When did Halley make
9、a surprising, but correct prediction?AIn 1704. BIn 1705.CIn 1706. DIn 1707.4This passage in general is about _.AHalley and other scientistsBthe orbit of a cometCNewton and HalleyDHalley and his discovery三、阅读七选五PaintingThe art of creating pictures using colors, shapes and lines is called painting. Mu
10、seums and galleries show the paintings of professional (专业的) artists. But painting is also a popular form of entertainment and creative expression._1_ Experienced painters usually use a brush to apply oil paints to a canvas cloth surface. Young painters usually use watercolors on pieces of paper. Ve
11、ry young children may use finger paints to create paintings.Painters can use their art to express devotion to a religion, to tell a story, to express feelings and ideas, or simply to present a pleasing picture. Religious paintings often show a god or a scene from a sacred text (圣典). Other common sub
12、jects have been famous legends and events in history, as well as scenes from daily life. Artists also paint portraits (画像), or pictures of people. _2_ All of these types of paintings show the human figure in some way.Some kinds of paintings do not focus on people. In landscape (风景) painting the focu
13、s is on scenes from nature. Artists also paint still objects such as fruits and vegetables. _3_ Some artists communicate their ideas through pictures that do not represent any object._4_ Paintings dating back 15,000 years have been found on the walls of caves in France and Spain. _5_ Samples of pain
14、ted pottery (陶器) from at least 5,000 years ago have been found in China and Iran. The ancient Egyptians decorated their temples with beautiful paintings. People in ancient Greece painted decorative objects such as vases in addition to the walls of temples.AThese works are called stilllife paintings.
15、BThese works can communicate a special feeling.CHumans have been making paintings for thousands of years.DPeople of all ages create pictures using a variety of materials.ECave paintings generally show animals that early humans hunted.FThe design of a painting is the plan of its lines, shapes and col
16、ors.GSometimes artists make portraits of themselves, which are called selfportraits.四、语法填空China sent up its second space laboratory, the Tiangong 2, on Thursday night, which will become the countrys 1._ (large) scientific platform in space. The lab will undergo (经历) preparations in space for about o
17、ne month and will take two astronauts to the lab to enter it. 2._ astronauts will stay inside the lab for 30 days. Strictly 3._ (speak), the Tiangong 2 is Chinas first space laboratory.Microgravity (微重力), strong radiation 4._ extreme temperatures in space can influence research on life science, phys
18、ics and new technologies, so Chinese scientists will make full use 5._ the Tiangong 2 to do 6._ (experiment) that are not possible on Earth.The Tiangong 2 has devices to test inorbit repair technologies for Chinas future manned space station, 7._ (plan) to be built around 2022. Moreover, each system
19、 on the space lab uses a special design, which means they can be 8._ (rapid) changed or repaired in case of trouble. This is the first time that a Chinese spaceship 9._ (use) the special design. The country is expected 10._ (have) the only space station after the International Space Station is retir
20、ed in 2024.一、完成句子1figured out2.in order to3.stay healthy4.the first person to go into space5.so as to recycle二、阅读理解1B细节理解题。根据文章第四段中的“He decided that they had simply seen the same comet three times.”及上文提到的看到彗星的时间分别是1531年、1607年和1682年可知，B项正确。2C细节理解题。根据文章第一段中的“He studied the observations of comets (彗星)
21、which other scientists had made.”以及第三段中的“He figured out the orbits.by scientists.”可知，哈雷的发现是在研究其他科学家们的观测结果时得出来的。故选C项。3B细节理解题。根据最后一段中的“He decided that this would appear in the year 1758. There were 53 years to go before Halleys prediction could be tested.”可知，哈雷预测彗星会在1758年出现，而这需要过53年才能得到验证，即1758531705。
22、故选B项。4D主旨大意题。通读全文可知，本文主要讲述了科学家哈雷以及他是如何发现哈雷彗星的。故选D项。三、阅读七选五1D设空处是本段的小标题。根据空后的“Experienced painters usually use a brush to apply oil paints to a canvas cloth surface. Young painters usually use watercolors on pieces of paper. Very young children may use finger paints to create paintings.”可知，本段主要讲了不同绘画
23、水平的人使用不同的绘画工具画画，D项正是对下文内容的总结。故选D项。2G上文内容“Religious paintings often show a god or a scene from a sacred text (圣典). Other common subjects have been famous legends and events in history, as well as scenes from daily life. Artists also paint portraits (画像), or pictures of people.”介绍了各种风格的绘画；下文内容“All of
24、these types of paintings show the human figure in some way.”中可抓住关键词“All of these types of paintings”，由此可知，这里应该填一种绘画风格。故选G项(有时候艺术家画自己的肖像，这被称为自画像。)3A在上句“Artists also paint still objects such as fruits and vegetables.”中捕捉到关键词“still objects (静止的事物)”，与A选项中的stilllife相呼应。故选A项。4C下文内容“Paintings dating back 1
25、5,000 years have been found on the walls of caves in France and Spain.”提到“绘画可追溯到15 000年以前”，所以上文会说“人类绘画已经有几千年的历史”。故选C项。5.E在上文内容“Paintings dating back 15,000 years have been found on the walls of caves in France and Spain.”中捕捉到关键词caves，并且这句话的意思是追溯到15 000年以前岩洞墙上的绘画，所以接下来会谈论洞穴绘画的内容。故选E项。四、语法填空1largest考查
26、形容词最高级。由语境可知，此处应该用形容词的最高级。2The考查冠词。此处的astronauts指的是前一句中的two astronauts，因此应该用定冠词表特指。3speaking考查固定用法。strictly speaking“严格地说”。类似的用法常见的还有generally speaking (一般说来), honestly speaking (诚实地说)。4and考查连词。Microgravity, strong radiation和extreme temperatures是并列关系，因此应该用连词and。5of考查介词。make full use of“充分利用”。6experiments考查名词复数。根据空后定语从句的谓语are可知，设空处应该用复数形式，that引导的定语从句修饰experiments。7planned考查非谓语动词。plan与Chinas future manned space station之间是被动关系，因此应该用过去分词形式。8rapidly考查副词。设空处修饰动词，因此应该用副词作状语。9has used考查时态。This is the first timethat从句，从句应该用现在完成时。10to have考查非谓语动词。be expected to do sth.被预计做某事。第11页（共11页）