深圳牛津版七年级英语下Unit 6 Electricity课文部分知识点解析及练习一、词组归纳1. 转化,变成change into2. 戏弄某人trick sb3. 最后at last4. 看上去很傻look foolish5. 流经flow through6. 某种程度上in a way7. 被连接到电缆上be connected to cables8. 电灯泡 a light bulb9. 挠头scratch one’s head10. 不同形式的能量different forms of energy11. 发电站 a power station12. 一包 a packet of13. 成/几包的in packets14. 整理好tidy up=clean up15. 关（灯，电器等）switch off=turn off16. 开（灯，电器等）switch on=turn on17. 与某人分享某物share sth with sb18. 准时on time19. 由……组成be made up of20.为……提供……provide sth for sb=provide sb with sth21. 在乎，关心care about二、words精讲1. electricity, n.电力；电流，静电；高涨的情绪；紧张如：At night these streets are brilliant with a pearly radiance of electricity.Electric adj. 电的；电动的；electrical adj. 有关电的；电气科学的2. foolish，adj.愚蠢的；鲁莽的；荒谬的，可笑的如：He was angry with himself for having made such a foolish mistake.Fool vi. 欺骗；开玩笑；戏弄n. 傻瓜；愚人；受骗者vt. 欺骗，愚弄adj. 傻的Art dealers fool a lot of people.艺术品经销商会愚弄许多人。
I was fool enough to accept his offer.我接受他的提议真是够傻的。
What a fool I was to believe he is a good man!A fool always finds a greater fool than himself.3. bulb，n. 电灯泡如：The light bulb in the kitchen burnt out.4. test, v.回转，返回；n.归来，返乡。
如：After I made a model plane, I tested it.5. wire n. 金属丝;金属线；vi.拍电报如：Electricity is carried along wires.Will you connect this wire to the television?6. battery n.[电]电池，蓄电池；[军]炮台，炮位；如：He is charging a storage battery.7. reply, n.答复、报复（行动）；vi.[法律]（原告对被告）答辩、作答；vt.回应，作出反应如：His evasive reply prompted me to ask another question.8. tidy，adj.整洁的、数量大的；n.盛零碎物品的容器、椅子的背罩；vt.& vi.使整洁；弄整齐如：It was a neatly furnished and immaculately tidy room.A tidy amount of money is a large amount.9. identify, vt.识别、认出，确定，使参与，把…看成一样；vi.确定；认同如：Could you identify your sunshade among a hundred others.The reporters identified one of the six Americans as an Army Specialist.10. conversaon, n.交谈、会话, 交往、交际；会谈、（人与计算机的）人机对话如：Please pull up a chair and join the conversation.11. anyone, pron. 任何人；任何一个；谁如：That dog will pick a quarrel with anyone he meets.12. cooker, n. 厨具，炉具如：The cooker is not yet wired in to the main supply.Cook n.厨师v.煮饭，烹饪He is a good cook.She can cook delicious fish.13. fridge，n. 电冰箱；冷冻机如：I put the milk and meat in the fridge.14. lock n. 锁；一把，一撮;vt. 锁上；使固定；隐藏;vi. 卡住，不动如：She brushed a lock of hair off his forehead.They beat them up and locked them in a cell.15. cable, n. 缆绳绳索；[电学]电缆；巨缆;vt. 发电报至；电传；固定系牢如：Steel cable will be used to replace worn ropes.16. moment, n. 瞬间，片刻；时刻；重要，紧要; 红极一时如：I'll be back in a moment.The moment the clown appeared on stage, the audience folded up.at the moment 此刻；当时in a moment 立刻；马上17. touch, vt.触摸；使某物与…轻轻接触；n.触摸，碰；触觉；vi.接触；联系如：I want to touch briefly on another aspect of the problem.She was off work with a touch of flu.keep in touch 保持联络18. throughVisitors enter through a side entrance. 游客从侧门进入。
I walked through a tunnel. 我行经一处隧道。
结论：through 用作，意思是“”拓展：常用短语辨析：go through 遭受She has been going through a hard life. 她最近经遭着艰难的生活。
get through 完成，使理解I find it impossible to get through to her.我发觉根本无法让她听懂。
look through 浏览She looked through her notes before the exam.她考试前匆匆看了一下笔记。
live through经历...而幸存He has lived through two world wars.他经历了两次世界大战。
through、across与cross的区别：cross 作动词用，“穿过，越过”的意思。
主要表示在物体表面上横穿。
如横过马路、过桥、过河等，与go across 同义。
Be careful when you cross the street.过马路时要小心。
across是介词，有“横跨，横穿，穿越”之意。
Go across the road , you will find the post office on your left. 横过这条公路，你会发现邮局就在你的左边。
through是介词，“在...之中，透过”的意思，常与go, walk等动词连用，表示“穿越，横穿”等意思。
主要表示从物体内部穿过。
如穿过森林、隧洞等。
The two friends were walking through the forest.这两个朋友正沿着森林走。
运用:①We must ________ the road very carefully.②Before going _________ the road, you should look left first and then right.③Look! The man is swimming _______ the lake.④They drove _______ the street quickly, but the police caught them at last.⑤________ the street and you can get to the hotel.⑥He _________ the road and then comes to the post office.⑦Go _________ the bridge and you will see the station.⑧You can’t _______ the road when the light is red.⑨It’s dangerous to swim ________ the river.三、Phrases精讲1.小心对待;谨慎处理be careful withThese glasses are very expensive, so he is very careful with them.2.（使）连接；联结connect…to…Connect the hose（软管）to the tap and turn on the tap.被连接到……Be conneted to…The hose is connected to the tap.3.发电厂;发电站the power stationHe took us to see the power station they built.4.关(电灯,机器) turn/switch offPlease switch the light off before leaving the room.In order to save electricity, please turn off/ switch off all the lights when you leave the room.5. 打开(电灯,机器) turn/switch onPlease turn/switch on the light, it’s getting dark.6. 转化,变成change intoThey eat different kinds of food which change into energy.人们吃的各种各样的食物都转化为能量。