1、Module 12 Save our world Unit 1 If everyone starts to do something, the world will be saved.,1. danger n. 危险【点拨】(1)danger是dangerous的名词形式,既可作可数名词,也可作不可数名词。当danger表示抽象的“危险;风险”时,是一个不可数名词;当指具体的“危害”时,是一个可数名词。其固定搭配:be out of danger,意为“脱离危险”。如:,Grandma was very ill two days ago, but now she is out of dange
2、r.祖母两天前还病得很厉害,现在已经脱离危险了。Smoking is a danger to health. 抽烟对身体健康有害。 (2)当表示“做某事有危险”时,danger后接of doing sth.,而不接to do sth.。,2. pollute v. 污染【点拨】pollute是动词,意为“污染”。如:The river has been polluted by waste products from the factory.这条河已经受到工厂排放物的污染。【延伸】pollute的名词形式为pollution,意为“污染”。如:Pollution is a danger to o
3、ur health.污染对我们的健康造成威胁。,3. waste n. 废料;废弃物【点拨】waste作名词,意为“废料;废弃物”,为不可数名词。如:Where do you put your kitchen waste?你把厨房里的垃圾放在哪里?,【延伸】(1)waste作名词,还可意为“浪费”,为不可数名词,但可连用不定冠词,常用于its a waste of time/money/. doing sth.结构中。如:Its a waste of time waiting any longer.再等下去是白费时间。,(2)waste还可作动词,意为“浪费”,常用于以下结构:waste ti
4、me/money/. on sth.,意为“在某事上浪费时间/金钱/”;waste time/money/. (in) doing sth.,意为“浪费时间/金钱/做某事”,其中in可省略。如:Dont waste time on computer games./Dont waste time (in) playing computer games.不要浪费时间玩电脑游戏。,4. hopeless adj 无望的【点拨】hopeless作形容词,意为“希望渺茫的;无望的”,其反义词为hopeful,意为“抱有希望的;给人以希望的”。其词根hope可作动词或名词,意为“希望;期望”。【延伸】ho
5、peless由hope+形容词后缀-less构成。类似结构的词还有:harmless无害的 useless无用的tireless不知疲倦的 countless数不清的colourless无色的 careless粗心的,1. Such as.? 比如说?【点拨】such as这个短语常用来表示举例说明。如:There are lots of things you could do.有很多你们能做的事。Such as.?比如说?,English is spoken in many countries, such as Australia and Canada.许多国家都讲英语,例如澳大利亚和加拿大
6、。,【辨析】such as与for examplesuch as常列举同类人或物中的几个例子,可与and so on连用,相当于like;for example一般只列举同类人或物中的一个例子,作插入语时,用逗号与主句隔开,可置于句首、句中或句末。如:Noise, for example, is a kind of pollution.比如,噪声是一种污染。,2. They use so much oil and cause pollution as well 他们使用如此多的石油,也造成了污染。【点拨】cause作动词,意为“引起;造成;使得”。常用搭配:cause sth,意为“导致”;c
7、ause sb sth,意为“使某人”;cause sb/sth. to do sth,意为“导致某人/某物做某事”。如:Smoking can cause lung cancer.吸烟可导致肺癌。,He caused his parents much unhappiness.他使得他父母很不愉快。The cold weather caused the plants to die.寒冷的天气导致了植物的死亡。,【辨析】also, too/as well与either (1)also位于be动词、助动词或情态动词之后,实义动词之前,用于肯定句中。 (2)too/as well置于句末,用于肯定句
8、中。too前面加或不加逗号均可。 (3)either置于句末,用于否定句中。其前必须加逗号。,3. Its no use talking about things we cant do.谈论我们无法做到的事根本没什么用。【点拨】此句句型为:Its no use doing sth.,意为“做某事是没用的”。如:Its no use trying to kick against the new rules.企图反对这些新规定是无用的。Its no use making a display of your knowledge.卖弄你的知识是没有用的。Its no use crying over spilt milk.覆水难收。,【延伸】类似的句型还有:(1)Its no good doing sth.意为“做某事不好/没用/不行”。如:Its no good talking to him, because he never listens.跟他讲没用,因为他从来不听。Its no good smoking.抽烟是不好的。,(2)Its fun doing sth.意为“做某事很有趣”。如:Its great fun playing golf.打高尔夫球很有趣。Its fun going for a walk after dinner.晚饭后去散步很有乐趣。,