最新广州、深圳沪教版牛津英语七年级 unit5 知识点总结

7B Unit 5 Water 重点单词： Drop n.滴 ，v. 落下 Journey n.旅程 Quantity 数量 Quality 质量 Experiment n.实验 Fresh adj.新鲜的 Salt 盐 Voice 声音 Add 增加 Chemical 化学制品 Through 穿过，通过 Pipe 管，烟斗 Valuable adj.宝贵的，很有 用 Bit 少量 Bank 银行 Change 不可数 n. 找给的 Return 归还，回到 Vapour 蒸汽 Form 形成 Stir 搅拌 Continue 继续 Crystal 水晶，结晶 reservoir 蓄水池 重点短语： turn off 关闭 Turn into （使）变成 Add.to.把加入 a bit 有点儿（要加上 of 才可以修饰不可数 名词） part of 部分 pocket money 零花钱 (be) made up of 由组成 dry up 干涸 重点句型： 1. Then it was time for sb. to .到了做某事的时候了(page59) 2. Remember not to. 3. How much water is there.? 4. How much bottles of water are there.? 详细讲解： 1.Listen to a story about the journey of a coin.(page57) journey 指从一个地方出发直达目的的长途旅 行 He decided to make a journey to Guangzhou. trip 指休闲或商业目的的短途旅行 He went on a business trip. travel 无直达目的之意，指不同方向的旅行 He came home after years of foreign travel. 2.when you exercise,you need more water.(page58) Exercise为不及物动词，是“锻炼”的意思。 可数名词：练习，体操 不可数名词：锻炼，运动 3.two thirds.三分之二(page58) 英语中的分数表示：分子用基数词，分母用序数词。分子大于 1 时，分母要用复数形式。 拓展：四分之几一般用 quarter 表示，二分之一用 half 表示。 如：四分之一：a quarter 四分之三：three quarters 4.倍数的表达分数：（page68）twice （1）A+be+倍数+as+ 形容词原级+as B 如：my pens are three times as many as yours 。我的笔是你的三倍 （2）A+be+倍数+ 形容词比较级+than B 如：my my pens are twice than yours。我的笔比你的多两倍 5.表示 every“每隔”的表达方法： （1）every+基数词+ 复数名词： every four years 每四年 （2）every+序数词+ 单数名词 every fourth year 每隔三年 （3）每隔一： every other +单数名词 every other line 每隔一行 6.辨析 through、over、across 三者都有“穿过的”意思 over 是从物体表面上方经过，不与物体接触 例如：The bird flew over the river。鸟从河水表面飞过 throngh 是从物体中穿过， 例如：The elephant cant go through the gate.这头象不能从门里穿过。 across 从物体表面经过并且有接触 例如：The car is going across the brige 汽车正从桥上经过 7So is this the end of your journey？那么这里是你旅程的终点吗？ end n.末尾，结局 At the end of 在后期/末端 At the end of the street，you can see ahotel。 By the end of 到在结束（表示时间概 念） He came back by the end of the meeting。 In the end 最后，终于 at last，finally 。 In the end，we got to the small city。 8.We use how many how much to ask about quantities. use “用 ” use sth to do sth.用某物做某事 人+be used to doing sth.某人习惯做某事 物+be used to do sth. 某物被用于做某事 如：wood is used to make paper。 9.Fix a dripping tap。修理滴水的水龙头。 （page68） （1） drip 指水滴，只能用于液体。 Drop 不管是做动词还是名词，都有滴下、落下的意思，可以使任何物体，不限于液体。 还有一个长得很像的伙伴：droop，指把脑袋低垂下来，一不小心丢了一个 o，就把脑袋 混丢了：He drooped his head in shyness. （害羞了把头低下了） （2） fix =repair 修道路，机器，以及日常生活 用品，如手表，自行车 My father is good at fixing broken watches。 mend 修补破损的东西，使其恢复原样， （包 括用针线缝补） ，一般指较小的物品 Mum，can you help me mend my socks？ 重点语法：如何谈论数量 我们可以用（not)much, many, a lot of, how much, how many 等词来谈论数量，下面让我们一 起来学习他们的用法。 1、many, much 与 a lot of (lots of) many, much 与 a lot of (lots of)三者意义相同，都有许多之意，many 修饰可数名词复数形式； much 修饰不可数名词；a lot of (lots of)既可以修饰可数名词复数形式；也可以修饰不可数 名词。 There are many students in his school. =There are a lot of /lots of students in his school. I need much / a lot of time to check the answers. 2、a few 和 a little a few 意为“几个” ，a little 意为“一点儿”a few 修饰可数名词复数形式；a little 修饰不可 数名词. a few 和 a little 都表示肯定意义。 I need a few apples and a little green tea. There are a few bananas and a little bread on the table. 注意：few 意为 “很少” ，little 意为“几乎没有” ，few 修饰可数名词复数形式；little 修饰 不可数名词. few 和 little 均表示否定含义。 There is little water in the glass. Few students take the taxi to school at Green High School. 3、how many 和 how much 两者都表示多少之意，都用于询问数量。how many 后接可数名词的复数形式，how much 后接不可数名词。 How many students are there in yours class? How much milk do you need? 注意：how much 还可以询问物品的价格。 How much is this sweater? 4、too many 和 too much too many 和 too much 均为太多之意， too much 修饰不可数名词，too many 修饰可数名词复 数形式。 There is too much smoke in the room. There are too many rules in our school. 注意：much too 用作副词，意为“太” ，修饰形容词或副词。 Your room is much too dirty. 5、too little, too few, not much, not many, no 和 enough too little 意为“太少” ， 修饰不可数名词；too few 意为“ 太少” ，修饰可数名词复数形式； not much 意为“ 几乎没有”修饰不可数名词；not many 意为“没多少“修饰可数名词复数形 式;no 意为”没有“，修饰可数或不可数名词 ;enough 意为“足够的“ ，修饰可数或不可数名 词。 练习： 用所给单词的适当形式填空 1 Can these children look after _ when their parents are not at home. ( them ) 2 Water is a _ resource, so we cannot waste it. ( value ) 3 Trees can produce a _ to make their leaves taste nasty when insects want to eat them. ( chemistry ) 4 We should never _ water because it is not easy for it to come to our flats. ( pollution ) 5 About 3of the water on Earth is without _( salty ) 单 项 选 择 1. Will you go for a walk after _ dinner ? a. a b. an c. the d. / 2. Carl, why not go and help your sister water the flowers there ? Why _ ? Im busy myself. Jack is lying on the grass doing something. a. me b. I c. him d. he 3. My cousin is always busy with his work, He has _ time to read newspaper . a. little b. few c. a little d. a few 4. There is _ sugar in my coffee. Its too sweet . a. too much b. too many c. too few d. too little 5. Alice looked _the room, but saw no one . a. around b. for c. at d. up 6. Ben:What did Peter drop _ the river ? Alice:Maybe a stone. a. in b. into c. on d. onto 7. Its time _ all of us to get ready for the quiz. a. to b. of c. for d. at 8. There _ twenty attendants at the contest tomorrow . a. are b. have c. will have d. will be 9. We should _ the used water clean before it goes back into the sea . a. keep b. make c. become d. turn 10. After I had a bath in the bathroom this morning, I _ the tap on, This makes the bathroom full of water. a. left b. forgot c. turned d. switched 11. We all should remember _ water. a. to waste b. wasting c. not wasting d. not to waste 12. If you _ some salt to a glass of water, it _and become part of the water. a. add Disappear b. addwill disappear c. will add.disappear d. will add. Will disappear 13. When I was in Italy last year, I _ a lot of famous cities . a. visit b. visited c. visits d. am visiting 14. A reservoir