1、课时作业5A Lesson in a Lab.课标单词阅读词汇释其义1liquid n._液体 2oxygen n._氧气 3partial adj._部分的；局部的 4boil vt._煮；煮沸 5steam n._蒸汽；水汽 6float vi._漂浮 7dissolve vi._溶解；分解；分离 8flame n._火焰 写作词汇悉其用1._substance n物质2._stage n阶段；时期3._ordinary adj.普通的；平常的4._form vi.形成5._facility n(常作复数)设备；工具6._department n(大学的)科、系拓展词汇通其变1._asto
2、nished adj. 吃惊的；惊愕的_astonishing adj. 令人吃惊的_astonish vt. 使吃惊_astonishment n. 惊奇2._aim n. 目标；目的_aimless adj. 无目标的3._expand vi.膨胀_expansion n膨胀；扩大(反义词)_contract vi.收缩4._lecture n演讲_lecturer n演讲者5._mixture n混合物_mix v(使)混合6._electricity n电_electric adj.电的；用电的_electrical adj.与电有关的；电气化的_electronic adj.电子的7
3、._conclusion n结论_conclude vt.得出结论8._react vi.(化学)反应_reaction n反应9._balance n. 天平；平衡_balanced adj.平衡的10._equipment n设备；装备_equip vt.装备；配备语境活用(用所给词的适当形式填空)1Our chemistry teacher_mixed some liquids into the water and the_mixture tasted very terrible. (mix)2The school has been rebuilt and it is well_equi
4、pped .Much money has been spent on the office_equipment .(equip)3More and more people have come to be aware of the fact that they should have a_balanced (balance) diet and give themselves room in their daily life for necessary exercise.4If you play with_electricity , you may get an_electric shock. (
5、electrical)5In my opinion, each of us should have an_aim of our own. But some of us lead an_aimless life every day. (aim)6The_conclusion (conclude), I think, he drew from his simple experiment is not scientific.7This chemical class is about the_reaction of metals with oxygen and our teacher shows us
6、 how iron_reacts with air and water. (react)8To our_astonishment , the famous star died. Thats to say, we were_astonished at the news of her sudden death, and it was really_astonishing . (astonish).课标短语短语速记1._keep_out_of 使不进入；避开(某事)2. add.to 往加入3._react_with 与起反应4. put.in order 把按顺序排列5._used_to 过去(常
7、常)6._be_proud_of 为感到骄傲/自豪7.at the top/bottom_在顶/底部 8find out_发现；查清 9go ahead_请做；进行；发生 10in the area of_在领域 11be supposed to_应当；理应 语境活用(选用上面的短语填空)1Sarah felt like crying when she_found_out that she had been chatting online with a boy student of her same class.2When I was little, my mother_used_to sit
8、 by my bed, telling me stories till I fell asleep.3Compared with the escaped driver, I_am_proud_of what I did.4We_are_supposed_to prevent the factory from pouring waste water into rivers.5The mother often tells her son to be a good boy, warning him to_keep_out_of trouble.6We Chinese are proud of the
9、 great success_in_the_area_of science and technology.课标句型教材还原1._It_is_hard_to_think_of a world without metals.很难想象一个没有金属的世界。2._The_closer you are, the_more youll see.你离得越近，看到的就越多。3._Here_is_a_table with the metals that react most at the top, and the metals that react least at the bottom.下面是一个表格，列于顶部
10、的金属反应最强烈，底部的则最弱。基础写作1如果你不确定做什么，明智的做法是记住这个谚语：入乡随俗。If you are unsure what to do, it_is_wise_to_remember the saying“When in Rome, do as the Romans do.”2你练得越多，你就会越擅长它。_The_more you practice something, the_better at it you will become.3快，公交车来了。准备好钱了吗？Quick, here_comes_the_bus . Have you got the right mon
11、ey?.语篇整合话题与语篇填空Metals expand when 1._heated (heat) and contract when cooled. How do they react with different 2._substances (substance)? Lets do a simple experiment.The aim of this experiment is to discover 3._if/whether iron rusts in dry air and in ordinary water. To carry out the experiment, you n
12、eed the 4._following (follow) things：clean nails, two test tubes and some cotton wool.First, put some iron nails 5._in/into the test tubes. Then put some cotton wool down one test tube, and halffill the other test tube with water. 6._After that，leave the tubes for one week.Observe the nails 7._caref
13、ully (careful). After one week, the nails in dry air have not rusted but others in water 8._are_covered (cover) with rust. The 9._conclusion (conclude) is that iron doesnt rust in dry air 10._while it does in ordinary water.话题与短文改错My feelings about science have realreally changed. I never used to en
14、joyingenjoy science，but last year I changechanged schools and the teachers here are excellent. Our chemistry teacher takes themus to public science lectures about four timetimes a term.These are always very interesting, as the lecturers are people who/that have made real discoveries in their area of
15、 science. Canada has many the firstclass scientists. In the last 20 years, seven Canadian scientists have won the Nobel Prize, thatwhich is the highest scientific prize. We should be very proud inof that. Im becoming more and more interestinginterested in physics and have decided to study it at university.