2014仁爱八年级Unit4topic1知识点详解及练习

Unit4 Our worldTopic1 Which do you like better,plants or animals?一．重点短语：1.成千上万的thousands of 2 .灭绝die out 3.以.....为食feed on 4.越来越少less and less 5.处于危险状态be in danger 6. 考虑，思考think of /about 7.在农村in the countryside 8. 给某人提供某物provide sth for sb 9.和......分享......share sth with sb 10.在.....扮演重要角色play an important part /role 11.和......一起玩play ...with 12. be important to sb对某人来说是重要的13.in the south of China 在中国的南部14. 在数量上越来越少become fewer and fewer in number15．欣赏自然之美enjoy the beauty of nature16. 为了他们的毛皮和骨头杀了他们kill them for their fur and bones17.众所周知as we know 18. 储存水hold the water 19.保持水循环keep the water cycling 20.控制气候control the climate二．重点句子：1. I think the countryside is much quieter than the city.2.He is lazier than me.3. I think roses are the nicest of all the flowers.4. As we know ,they are both important to us .5. We share the same world with them.6. Because animals are our friends .They make me happy.7. Which kind of animals do you like better, frogs or snakes?8.热带雨林的重要性的句子。

课本P85三. 基础词汇和句型：★think about 意为“考虑，思考”时，和think of 可以互换使用。

后面所接动词要用ing 形式。

注意：think of 还有“认为，想起”,这时二者不能互换使用。

1. I am thinking about ________ (get)a new dictionary.2.让我考虑一会儿。

Let me ________ _________ it for a while.3.你觉得这场篮球赛怎么样？What do you _______________ the basketball match?4.她经常想起她的朋友安娜。

She often ______ _______ her friend,Anna.链接: think over 仔细考虑 e.g. You had bettter think it over and then write down your answers.★in the countryside 在乡村in the city 在城市★enjoy sth.喜欢......，享受......；enjoy doing sth. 喜欢做某事；enjoy oneself =have a good time玩得开心Lots of people enjoy __________(listen ) to music to relax themselves.★nature 名词，“自然，自然界”。

e.g. It’s important for us to keep the balance (平衡)of nature.natural 形容词，“自然的，天生的” e.g. He is a natral musican.Lucy dances very well ,she is a_________(nature) dancer.★“of all/the +基数词”,表示“在所有/三者或三者以上之中” ,使用最高级。

e.g. Kate runs the fastest of all.He is __________ of all. A.tall B.taller C. the tallest★sheep 绵羊，单复数同形，类似的词还有deer, Chininese ,Japanese★As we know ,they are both important to us1.as we know 众所周知 e.g. As we know, water is very important to us.2.both 两者都，常用的结构有both ...and ,其后的谓语动词要用复数。

Both he and his father _____ (want) to visit Beijing on holiday.3. be important to sb 对某人来说是重要的。

Your idea is very important ______ us. We should follow it.★share ...with 意为“和......分享......，和......共用” e.g. Would you like to share the cake with your brother?外面下雨了，你愿意我和你共用一把伞吗？It’s raining outside, would you like to _______ your umbrella _______ me.★or 的用法1.意为“或者”时,表示选择关系2.or 还意为“否则”,表示转折关系。

but “但是”,表示转折。

and表示并列或承接关系。

a. Be quick,_____ we’ll miss the flight to Hainan Island. A.or B.but C.andb. Studay hard, _______ you will fall behind.(or,but ,and)c.Money is very important ,______ it’s not be the most important thing. (or,but ,and)d.Which do you like better, the moon ______ the sun? (or,but ,and)★like ...better “更喜欢......”,常用于两者之间的比较。

e.g. Which do you like better, basketball or football?like...best “最喜欢”,常用于最高级中。

e.g. Which subject do you like best? 译：____________________________Which kind of music do you like _______(good) ,pop music or classical music?★cover 作动词，意为“覆盖，遮盖”。

e.g. She covered her face with her hands. 译：____________________________作名词，意为“盖子，封面”,e.g. The book needs a new cover. 译：____________________________be covered with “被...所覆盖” e.g. The road was covered with snow. 译：____________________________Most of the earth is _______ with water. A. cover B. covered C.covering★earth 1.the earth 地球 2.泥土e.g. sandy earth 沙土on earth 1.（用于加强语气）究竟，到底 e.g.What on earth is the problem? 译：____________________________2. 在世界上,=in the worldon the earth1.在世界上，= in the world 2.在地球上e.g. He is the luckiest man on （the) earth. 译：____________________________★wood 作不可数名词，意为“木材，木料”。

e.g. The chair is made of wood.译：____________________________意为“树林”，可数名词 e.g. There is a wood near my house. 译：____________________________形容词是wooden “木制的，木头的” e.g. a wooden chair .译：____________________________I like the ________(wood ) table very much .It’s very nice.★hundred,thousand,million 的用法1.这些词表示不确定数目时，可和of构成短语，但要切记，这些词之后要加“s”,e.g. millions of2.表示确定数目时，要在这些词前加具体的数目，但这些词之后不加“s”, 且不需要加of.a.我的MP4 花了我200 元。

My MP4 cost me two _________ yuan.b. ________ parts make up the machine. A.Hunderds of B.Hundred of C. Two hunderds of★They play an important part in controlling the climate.1.play an impotant part/role in (doing) sth 在......中扮演着重要的角色。

电脑正在我们的日常生活中扮演着重要的角色。

Computers _______ _______ _______ _______ _______ in our daily life2. control 动词，“控制”，过去式controlled ,现在分词controlling,★smaller and smaller “越来越小”比较级+and+ 比较级，表示“越来越......fatter and fatter 译：____________ stronger and stronger译：____________链接：部分双音节或多音节的形容词要表达“越来越...”时，则要同“more and more +多音节的形容词”e.g. more and more interesting译：__________________ more and more beautiful译：___________________如果要表达“越来越不.......，则用“less and less +多音节的形容词”e.g. less and less careful译：___________________★provide sth for sb =provide sb with sth 为某人提供某物练习：1.政府为他们提供了房子。