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1、Unit 5知識(shí)要點(diǎn)I.詞形變化
1. fresh adj.淡的，無(wú)鹽的，新鮮的freshen. v.使?jié)崈?；使清新salt n.鹽 salty adj.咸的
2. experiment n.實(shí)驗(yàn) experimental adj,實(shí)驗(yàn)（性）的chemical n.化學(xué)品 adj.化學(xué)的 chemistry n.化學(xué) chemist n.化學(xué)家
3. valuable adj.珍貴的；很有用的value n.價(jià)值 valueless adj.無(wú)價(jià)值的；沒(méi)有用的change n.找給的零錢；找頭v.改變
4. return v.歸3S=give back v.返回=go/come bac
2、kform v.形成；構(gòu)成n.表格
5. angry adj 生氣的 angrily adv, 生氣地 anger n, 生氣waste v.浪費(fèi)，濫用n.廢物，垃圾
6. cloud n. 云 cloudy adj. 多云的pollute v.污染，弄臟 pollution n.污染
7. drinkable adj 可飲用的 drink v.喝 n.飲料.詞語(yǔ)釋義
1. continue 二 go on 繼續(xù)turn off =switch off 關(guān)掉
2. add... to = put... in 把...力口入come from = be from 來(lái)自
3. more
3、 than = over 超過(guò)，多于a bit = a little 有點(diǎn)，一點(diǎn)
4. be made up of 二 consist of 由... 組成give sb sth = give sth to sb 給某人某物
5. change ... into = turn ... into 把??, 變成???TVs + adj + to do sth = To do sth is + adj 做某事是…
II .重點(diǎn)詞組turn off 關(guān)掉2. add...to...把…加入
3. a bit有點(diǎn)，一點(diǎn)4. part of的一局部5. pocket money 零花錢
7.
4、the end of …的結(jié)尾，…的終點(diǎn)9. a drop of water 一滴水
11. instead of 代替13. fall from 從… 掉落
15.twice as much as 兩次之多17. through out the world 普及世界
19. be covered with / by 被… 覆蓋21. by the way順便說(shuō)/問(wèn)一下
6. (be)made up of由???組成
8. dry up 干涸
10. make ... clean 使…干凈
12. travel through 游過(guò)???
14. drop into 掉進(jìn)…
5、16. come out of 從...出來(lái)
18. two thirds 三分之二
20. more than 超過(guò)
22. look around 環(huán)顧四周
23. remember （not） to do sth記得（不）去做某事 （未做）remember doing sth 記得做過(guò)某事 25.
fall down掉下，落下 have a bath 泡澡
28.
30.
turn... down / up 調(diào)低 / 高 change ... into 把...變成
29.
31.
take a shower 淋浴 come from 來(lái)自
26. in a lo
6、w / loud voice 小聲/ 大聲說(shuō) 27.
IV寫作常用句型。
1. Water covers about two thirds of the Earth.
水約覆蓋地球外表的三分之二。
2. Water falls from the clouds as rain.水以雨的形式從云中落下。
3. Do you know where I come from ? 你知道我從哪里來(lái)嗎？
4. It is time (for people) to clean water. 是(人們)清潔水的時(shí)候了。
5. This is the end of your journey.這就是你
7、旅程 的終點(diǎn)。
6. Remember not to waste or pollute water.
記得不要浪費(fèi)水，也不要污染水V.范文
Water
Water is very important in our daily lives. We need water to drink, take a shower or bath, water plants and so on. So, without water, life can't go on.
Most part of the Earth is covered by oceans, but ocean water is not drinkable. Groundwater may be drinkable, but it is not easy to find groundwater that is clean and safe to drink because people are polluting it We should try our best to save water. For example, we can take a shower instead of a bath. Turn off the tap when we brush our teeth.
7BU5 知識(shí)要點(diǎn).docx
