Unit 4 Astronomy: the science of the stars
一.重点词汇
1．________ n．天文学________ n．天文学家
2．________ n．系统；体系；制度________ adj.系统的 3．________ n．宗教；宗教信仰 4．________ n．学说；理论
5．________ n．球体；地球仪；地球_____ adj.全球性的 6．________ adj.猛烈的；激烈的________ adv. 猛烈地 7．________ n．大气层；气氛 8．________ adj.基本的；基础的
9．________ n．出席；到场；存在________ adj.出席的；存在的 10．________ n．反应；回应________ vi.反应；回应 11．________ vi.乘；增加 12．________ n．氧
13．________ vt.存在；生存________n．存在；生存 14．_____ n．谜；难题vt.(使)迷惑_____adj.令人困惑的 15．________ n．生物学________ adj.生物的 16．________ n．万有引力；重力 17．________ n．卫星；人造卫星 18．________ n．物理学家 19．________ adv.失重地
20．________ n．质量；团；块；大量_______ adj.巨大的
二.短语回顾
1．________ time 及时；终于
2．be harmful ________ 对……有害 8．a mass ________ 许多；大量 3．give birth ________ 产生；分娩 9．break ________ 突发；爆发 4．________ one's turn 轮到某人；接10．watch ________ for 密切注视；当着 心；提防 5．prevent... ________ 阻止；抑制 11．________ that 既然 6．block ________ 挡住(光线等) 12．get close ________ 靠近；接近 7．cheer _______感到高兴；感到振奋 13．get the hang ________ 掌握，精通
三、请根据各句上下文的意义，选择正确的单词填入空白处。
第一组：force, disappoint, system, surface, harmful, astronomy, gravity, publish, atmosphere, planet
1 His words _________ me and I lost hope for him.
2 He seems very honest on the _________ but actually he is not reliable.
3 There is still a lot that scientists don’t know or explain in the field of _________. 4 He posted his newly-written novel to a _________ house but received no reply. 5 There are eight _________ in the solar system.
6 When I entered the meeting room I sensed the _________ was unusual and everyone kept silent.
7 Do you know about Newton’s law of ________? 8 Drinking alcohol is ________ to people’s health.
9 In the Chinese education _________ exams are laid in the most important place. 10 Never _________ anyone to do anything he doesn’t want to.
第二组：telescope, development, oxygen, violent, presence, gradually, mass, spread, explode, solid, exist, float
11 With the _________ of science and technology people can enjoy the modern civilization fully.
12 Children should not be allowed to watch any ________ movie.
13 _________, he began to understand how silly he was to have done such a thing. 14 With the Internet news from every part of the world _________ rapidly. 15 Many of the students think that _________ geometry is too hard to learn. 16 A plastic bag was seen ________ in the water.
17 The scientists say that dinosaurs _________ millions of years ago but then died out suddenly.
18 A bomb _________ near the doorway of the restaurant from across the street. 19 When you are on the moon your ________ will be less than on the earth. 20 He sat in the front row and hardly noticed my ________. 21 Man cannot live without ________.
22 With the help of a ________ you can observe lots of stars in the sky.
四、把下列短语填入每个句子的空白处（注意所填短语的形式变化）：
in time prevent…from depend on cheer up now that break out
1 SARS _________ in the mainland of China in the year 2003. 2 ________ everyone is here, let’s start work. 3 I arrived there just _________ for the film.
4 Nothing can ________ him ________ carrying out the survey. 5 Anyhow, you can ________ him to give you a hand. 6 Give Mary a call; she needs ________.
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