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1、Unit 4 Topic1 When was it invented?.词组归纳:be（not） allowed to do sth.（没有）被允许做某事show sth. to sb.=show sb. sth.把某物展示给某人看be made by sb.被（某人）制作be made of用制造的(可看出原材料)be made from用制造的(不可看出原材料)be made in在.（地点）制造be made into被制成.send sth. to sp. 、sb.发送某物给某人某地realize=make come true实 现 spend sometime/some money
2、（in）doing sth.花费时间金钱 做某事spend sometime/some money on sth.在。上花费时间金钱some knowledge about sth.一些关于.的知识8.be used to do sth =be used for doing sth.被用做某事be/get used to doing sth.习惯于做某事used to do sth.过去常常做某事be used as某物被用作./被作为。使用9.It is said that据说10.during ones life在某人的一生中11.go this way走这边12.make tents搭帐
3、篷e about产生15.a few simple steps一点简单的步骤16.be discouraged by被阻挡17.brainstorm for ideas集思广益18.make a detailed drawing画下具体的图画19.share sth. with sb.和某人分享某物21.the rest of the time剩余的时间22.a man-made satellite一颗人造卫星23.the shape of the earth地球的形状重点句子:1.The radio was invented by Guglielmo Marconi in 1895.收音机是
4、在 1895 年马可尼发明的.2.When was the digital camera developed?数码相机是什么时候研发的？It was developed in the 1970s.它发展于 20 世纪 70 年代.3.Where was it developed?它在哪发展的？It was developed in Japan.它在日本得以发展.4.What is a rocket used for?火箭被用来做什么？It is used for sending satellites or spaceships into space.它被用作发射卫星或宇宙飞船到太空.5.I w
5、ish I could go into space some day.我希望有一天我能去太空.6.I hope your dream will come true.我希望你梦想成真.7.Its said that he invented more than two thousand things during his life.据说他一生中发明了两千多项东西.8.Inventing is interesting and exciting and everyone can be an inventor.发明是有趣且激动人心的，每个人都能成为发明家. 语法 (被动语态)构成法：1.一般现在时的被动
6、语态构成：is / am / are + 及物动词的过去分词Our classroom is cleaned every day.2.一般过去时的被动语态构成：was / were + 及物动词的过去分词A new shop was built last year.3.现在完成时的被动语态构成：has / have + been +及物动词的过去分词Many man-made satellites have been sent up into space by many countries.4.一般将来时的被动语态构成：will/shall+ be + 及物动词的过去分词A new hospi
7、tal will be built in our city.5.含有情态动词的被动语态构成：情态动词+ be + 及物动词的过去分词Young trees must be watered often.6.现在进行时的被动语态构成：am / is / are + being +及物动词的过去分词Eg ： They are planting trees over there. Trees are being planted over there bythem.7.不定式的被动语态：to + be + 及物动词的过去分词There are two books to be read. There ar
8、e twenty more trees to be planted.注意事项：不及物动词无被动语态.2.感官动词或使役动词使用省略 to 的动词不定式，主动语态中不带 to ，但变为被动语态时，须加上 to 。 感官动词有 smell, sound, taste, fell 等。使役动词有 let, make,have, help, hear, see, watch, notice, look, listen.Eg：A girl saw my wallet drop when she passed by. My wallet was seen to drop by a girl when sh
9、e passed by.3.如果是接双宾语的动词改为被动语态时，直接宾语(物)作主语，那么动词后要用介 词，这个介词是由与其搭配的动词决定。Eg：He gave me a book.A book was given to me by him.Get+过去分词也可以构成被动语态，用这种结构的句子侧重于动作的结果而不是动作本身。Eg： The man got hurt on his way home. 那个男人在回家的路上受伤了。How did the glass get broken? 杯子怎么破了Unit 4 Topic 2 Im excited about the things that w
10、ill be discovered in the future.一、短语will be shown将上映life in space太空生活sound exciting听起来令人激动travel by spaceship乘宇宙飞船旅行live on Mars住在火星上under the sea在海底be displayed on soft screens被展示在软显示屏上see sth. with ones own eyes亲眼目睹。hear the news on TV听到电视里的新闻take part in=join in参加（活动，比赛，游戏)grow up长大master some ba
11、sic skills掌握一些基本的技能perform ballet on the stage在舞台上表演芭蕾prefer A to B比起 B 更喜欢 Aby chance偶然in the universe在宇宙中be named after。被以。命名53% as wide as宽的 53%two-fifths as strong as五分之二的强at a distance of 以。的距离in the night sky在夜空中be covered by 。被覆盖between.and.在.和之间It takes some time to do sth.去做某事花费了多少时间search
12、for sb./sth.寻找某人或某物search sb./sth/sp.搜查某人/某物/某地dry fruits风干水果It has been+time+since+句子自从做某事已经过去多久了land on登陆go well进展顺利living conditions生活条件whats worse更糟的是water supplies水供给limit the use of water限制用水量every six weeks每六周another seven hundred days另外 700 天be worth doing sth.值得做某事the solar system太阳系send a
13、message发消息in outer space在外太空二. 重点句型We will be able to do anything that can be done on the earth.我们将能做任何可以在地球上做的事情。I wont believe there are aliens until I see them with my own eyes.直到我亲眼看见才相信有外星人存在。Mars is named after Mars, the Roman god of war.火星是以罗马战神的名字命名。Mars diameter is 53% as wide as that of th
14、e earth.火星的直径是地球的 53%宽。Mars goes around the sun at a distance of about 228 million kilometers.火星在相距 228,000,000 千米的距离围绕太阳运行。A person who weighs 90 kilos on earth weighs only 36 kilos on Mars.一个在地球上重 90 千克的人在火星上重 36 千克。It took a spaceship about eight months to reach Mars from the earth.从火星到地球花费宇宙飞船大约
15、八个月的时间。三、语法：一般将来时被动语态基本形式： 一般将来时的被动语态表示“将要被”1.will / shall + be + done2.be going to + be + done构成： 学习一般将来时的被动语态，首先应掌握其各种结构形式。1肯定式 will（shall）be动词的过去分词2.否定式 will（shall）notbe动词的过去分词3.疑问式 Will（Shall）主语be动词的过去分词？ 现在，请看实例：肯定句：A new stadium will be put up here否定句：A new stadium will not（wont）be put up here疑问句及简略回答：Will a new stadium
