沪教牛津版初中英语七年级下册Unit 5知识点梳理Unit5单词drop n.& v.滴；落下, 掉下[drɒp]journey n.旅行, 旅程['dʒɜːni]quantity n.数量[ˈkwɒntəti]experiment n.实验,试验[ɪks'perɪmənt]fresh adj.淡的, 无盐的[freʃ]salt n.盐[sɔːlt]on prep.表示已连接、处于工作状态或使用中[ɒn]voice n.嗓音,说话声[vɔɪs]reservoir n.水库add v.增加,添加[æd]chemical n.化学品[ˈkemɪk(ə)l]through prep.通过,穿过[θruː]pipe n.管道[paɪp]valuable adj.宝贵的,很有用的[ˈvæljʊəb(ə)l]bit n.有点，一点[bɪt]bank n.银行[bæŋk]change n.找给的零钱,找头[tʃeɪndʒ]return v.归还[rɪ'tɜːn]vapour n.蒸汽,雾气form v.形成,构成[fɔːm]stir v.搅拌[stɜː]continue v.继续[kənˈtɪnjuː]crystal n.结晶（体）[ˈkrɪstəl]turn off 关掉[ˈtɜːnɒf]add...to 把...加入...a bit 有点,一点[ə'bɪt]part of ...的一部分pocket money （父母给孩子的）零花钱（be）made of 由...组成dry up 干涸Unit5课文Water talks水的对话Dora was in the bathroom. The tap was on.多拉在浴室里。
水龙头开着。
"Turn that tap off," said an angry voice. "You're wasting water.""关掉水龙头，"一个生气的声音说道。
"你在浪费水。
"Dora looked around, but there was no one there.多拉看了看四周，但是没有人。
"Who are you?" "你是谁？""I'm a drop of water. Do you know where I come from?""我是一滴水。
你知道我来自哪里吗？""From the tap?" asked Dora."来自水龙头？"多拉问。
"A few days ago, I was in a cloud," said the drop of water."几天前，我在云层里，"水滴说。
"Then I dropped into a river and ran into a reservoir."后来我掉进了河里并流进了一个水库。
Then it was time for people to clean me."之后就到了人们净化我的时候。
""Clean you?" Dora asked. "净化你？"多拉问道。
"Yes. I was dirty. They cleaned me and added some chemicals to me. "是的。
我很脏。
他们净化我并给我加了一些化学制品。
Then I travelled through the pipes under the streets and now I'm here." 后我就沿着街道下面的管道到了旅行，现在我到了这里。
"Dora asked, "So is this the end of your journey?"多拉问道，"那这就是你旅程的结束了吗？""No. People will make me clean again."不。
人们会再次净化我。
I'll go into a river and then into the sea again."我将流进河流并再一次到大海里。
""Again?" "再一次？""Yes. My journey starts there."是的。
我的旅程是从那里开始的。
Remember not to waste or pollute me. I'm valuable."记住，不要浪费或者污染我。
我很珍贵。
"Dora turned the tap off and came out of the bathroom.多拉关上水龙头并走出了浴室。
More practiceFacts about water关于水的事实Here are some interesting facts about water:这是一些关于水的有趣事实：·About 70% of the human body is water.·人体大约70%是水。
·Oceans cover about 75% of the Earth, but ocean water is salty.·海洋覆盖了地球75%的面积，但是海洋水是咸的。
Therefore most of the water in the world is not drinkable.因此世界上大部分的水是不能饮用的。
·Groundwater may be drinkable, but it is not easy to find groundwater that is clean and safe to drink.·地下水可以饮用，但是找到干净和能安全饮用的地下水不简单。
·If water drips from your tap every 10 seconds, you will waste about 315 litres of water a year-enough to fill two baths!·如果水龙头十秒钟漏一滴水，你一年将浪费大约315公升水-这可以装满两个浴盆！·Having a bath uses about twice as much water as taking a shower.·用浴盆洗澡用的水大约是洗淋浴的两倍。
Having a shower instead of a bath can save up to 400 litres a week.用淋浴代替浴盆洗澡，一周可以节约400公升水。
Unit5必考短语和句型短语：1. turn off 关掉turn on 打开2. a bit 一点3. pocket money 零花钱4. be made up of 有某物组成几分之几quarter 1/4 half 1/2 two thirds 2/3 three fifths 3/5 先分子，再分母，分子用基数，分母用序数，当分子为大于1的整数时，分母要变复数。
add A to/into B把A加入Be.g They cleaned me and added some chemicals to me. Mr. Li added some salt into the soup.李先生向水中加了一些化学物质。
through, across, over辨析through 穿越某一空间e.g He went through the corridor.across 穿过某一平面e.g He walked across the street.over 越过某一障碍物e.g He ran over the buses, and went into Bainaohui.make sth. + adj.使某物变……e.g People will make me clean again.Mr. Li made the security guard very angry.leave sth. adj. 使某物保持某种状态e.g. I left the tap on in the bathroom.Please leave the door open.Mr. Li left his computer on for the whole night. interesting / interestedv+ing 令人xx的（东西）; v+ed xx的（人）e.g. The film is very interesting. Mr. Li is very interested. 拓展：对某物感兴趣的be interested in sth.e.g. Mr. Li is very interested in films.句型：1. It’s time for sb. to do sth.某人该做某事了It’s high time for sb. to do sth.e.g Then it was time for people to clean me.2. remember not to do sth. 记住不要做某事remember to do sth. 记得做某事e.g Remember not to late again for class.Remember to post a letter for me.3. How much … is there…? 还有多少….（不可数）？How many …. are there…? 还有多少….（可数）？Unit5 必考语法用little / few, a little / a few, many / much等谈论数量little系列：little / a little用于不可数名词前few系列：few / a few 用于可数名词前e.g. There is a little water in the bottle.There are a few bottles in the box.带a系列：a little / a few 意为“一些“，虽然不多但仍然有一些不带a系列：little, few意为“几乎没有”，表示否定，There are few people in the room.There is little water left in the bottle.quite a few 意为“很多”Mr. Li has quite a few Kingston flash drives.many, much 不解释，再次提醒many修饰可数名词，much修饰不可数名词。