1、About_ of the water on Earth is“fresh”water.,Water covers about_ of the Earth.,World Water Day？,March 22nd（3月22日）,3%,71%,Questions,Unit5 Water,Part 1 Vocabulary,drop n.滴,一滴水 a drop of water,v.掉下I dropped my glasses.,drop,fall,表示从高处往下掉或降，有时可互换。He dropped/fell from the top of the house.,drop 一般指无意的行为，
2、意外Tears dropped from her eyes.The temperature suddenly dropped to zero.,fall 落下，掉落。在重力作用下，有自然坠落之意。,An apple fell to the ground.Snow often falls in Shenyang in winter.,drop 做名词讲，通常指液体a drop of waterdrops of rain,fall asleep 睡着 fall down 摔倒fall in love with sb.爱上fall into pieces 碎成许多片 fall behind 落后,继
3、续做某事continue doing continue to do,做同一件事,(中断后)接着做另外一件事,continue v.继续（keep doing sth without stopping）,She looked around,then continued drawing.He continued to work there.,fresh air 新鲜空气 fresh blood 新成员、新血液fresh water 淡水,fresh adj.淡的，无盐的，新鲜的,through prep.通过、穿过 辨析：cross,across,through,Chemical n.化学品（ch
4、emicals）,Chemistry n.化学,Valuable=useful and important adj.有价值的，宝贵的这对我来说是宝贵的一课。It is a valuable lesson for me.,quantityn.数量(不可数)；数目；数额（可数）,1.quantity如果指具体的数量，为可数名词，可连用不定冠词或用复数形式;He ate a small quantity of rice.Quantities of food were on the table.It is much cheaper if you buy it in large quantities.a
5、 small/large quantity of 小量的/大量的可接可数或不可数名词,2.quantity指相对于质量来说的“数量”，为不可数名词。例句：Weve always put quality before quantity.我们总是认为质量比数量重要。,experiment(s)n.实验 do/make an experiment on,v.试验、实验 experiment on sth,a bit of 修饰不可数名词（用法同 a little)a bit of money a bit of work,一点钱一点工作,a bit 有点,一点（修饰形容词）eg.a bit tired
6、,bank 银行,change n.零钱(不可数名词）,扩展：change表示变化时是可数名词 e.g.Great changes have taken place in this place.,voice 嗓音 说话声 in a loud/low voice 辨析：voice,sound,noice,He returned the book to you yesterday.return返回=come back=go back,return v.归还=give back,n.回报 in return for 作为 的回报,drop journey quantityexperiment voi
7、ce reservoirchemical pipe bit,旅程实验水库化学品一点管道说话声滴、落下数量,Part2 phrases,1.learn about sth.了解某事,得知He learned about water from his teacher.,2.Add to把加到Please add some sugar to my coffee.,3.talk to sb.跟某人交谈 My teacher want to talk to me.,4.putin correct order 排序 He put the books in correct order.,5.look aro
8、und 环顾 Look around before you cross the streets.,e from 来自=be from He comes from USA=He is from USA.7.in a cloud 在云里 A bird is in a cloud.,8.turn off 关上=switch offturn off the computer,turn off&closeturn off 用于有开关的物体，如电视，收音机等；close 可表示物体处于闭合的状态。Close the door,please.,与turn相关短语turn on 打开 turn off 关闭t
9、urn up 开大声/出现 turn down 开小声/拒绝turn into 把变成,Part3 sentences,It is time for sb.to do sth.该某人做某事的时候了It is time for(I)(do)the homework.It is time for(they)（go）to bed.It is time for(we)（go）to school.,me to do,them to go,us to go,Dora was in the bathroom.The tap was on.(adv)“Turn that tap off,”said an an
10、gry voice.“”Youre wasting water.”Dora looked around,but there was no one there.“Who are you?”“Im a drop of water.Do you know where I come from?”“From the tap?”asked Dora.,Part4 Text,“A few days ago,I was in a cloud,”said the drop of water.“Then I dropped into a river and ran into a reservoir.Then it
11、 was time for people to clean me.”“Clean you?”Dora asked.“Yes,I was dirty.They cleaned me and added some chemicalsto me.”Then I travelled through the pipes under the streetsand now Im here.”,Dora asked,“So is this the end of your journey?”“No.People will make me clean again.Ill go into a river and then into the sea again.”“Again?”“Yes.My journey starts there.Remember not to waste orpollute me.Im valuable.”Dora turned the tap off and came out of the bathroom.,不要让最后一滴水 成为眼泪!,
