高中物理period 1

Book 3.Unit 4 Astronomy: the science of the stars出题人审题人—张凤兰康秀琴Book 3.Unit 4 Period 1课课练——热热身吧一.写出下列单词的变化形式1.系统(n.)_____________；系统的(adj.) _____________2.球体，地球(n)_____________；全球性的(adj.) _____________3.猛烈的(adj)._____________；暴力(n.) _____________；猛烈地(adv.)_____________4.生存(v.)_____________；生存(n.) _____________5.物理学家(n.)_____________；物理(n.) _____________；身体的(adj.)_____________6.生物学(n.)_____________；生物学家(n.) _____________7.宗教（n.）_____________；宗教的（adj.）_____________8.原子（n.）_____________；原子的（adj.）_____________二.活学活用——用所给单词的适当形式填空。

1.The treatment they gave him did him more___________than good，though the doctor insisted it was___________. (harm)2.Air _____________everywhere and its ____________ makes it possible for us to live on. (exist)3.He is very ____________.For example，the lifting device he made is a ____________of ropes and pulleys. (system)4.A _______tour means traveling all around the ________ . (globe)5.The use of _____________against the attackers led to more __________ clashes. (violently)6.She was a _____________woman who would n’t hurt an ant. (gently)三.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 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 though they 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). Then Halley set to work. He figured out (解决, 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 timesB. the same comet appearing at different timesC. three different comets appearing three timesD. several comets appearing at the same time2.Halley made his discovery _____.A.by doing experimentsB. by means of his own careful observationC. by using the work of other scientistsD. by chance3.Halley made a surprising, but correct prediction in the year _____.A.1704B. 1705C. 1706D. 17074.This passage in general is about _____.A.Halley and other scientistsB. the orbit of a cometC. Newton and HalleyD. Halley and his discovery5.Which of the following is TRUE?A.Edmund Halley was an American scientist.B. Halley made his discovery by doing experiments.C. Isaac Newton was a famous mathematician.D. The orbit of a comet had the shape of a triangle.四．语法填空Mary will never forget the first time she saw him. He suddenly appeared in class one day,_1__________ (wear)sun glasses. He walked in as if he 2________ (buy)the school. And the word quickly got around 3__________he was from New York City.For some reason he sat beside Mary. Mary felt 4________(please),because there were many empty seats in the room. But she quickly realized that it wasn’t her ,5________was probably the fact that she sat in the last row.He thought he could escape attention by sitting at the back, but he was wrong. It might have made it a little _6________(hard) for everybody because it meant they had to turn around, but that didn’t stop the kids in the class .Of course whenever they turned to look at him, they had to look at Mary, 7_________ made her fell like a star.“Do you need those glasses 8_________medical reasons?” the teacher asked. The new boy shook his head .”Then I’d appreciate it 9__________ you didn’t wear them in class.” The new boy looked at the teacher for a few seconds, and then he took 10___________off, gave a big smile and said ,”That is cool.”。