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1、2022-2-121UNIT 16 SCIENTISTS AT WORKreading2022-2-122TASK Understand the use of some new words and phases.2022-2-123REVIEW How much do you know about the experiment with kite?2022-2-124SOME NEW WORDSlightningcondenserthunderstorm閃電電容器雷暴thunderchargeConduct electricitythundercloud2022-2-125SOME USEFU

2、L EXPRESSIONS Conduct : 1. to direct or lead;管理，引導(dǎo)He conduct her business very successfully.He conducted us on a tour of the city. 2.指揮 conduct a concert./conductor(樂隊(duì))指揮，售票員 To act as the path for(electricity, heat,ect.)傳string wont conduct electricity, but wet string will.2022-2-126 a number of 大量

3、，許多。/修飾可數(shù)名詞的復(fù)數(shù)形式。比較a number of 和the number ofA number of students are from Guandong.The number of students is 300 in the school. high adj.&adv. quick-quickly wide-widely high-highly deep-deeply close-closely The door opened wide and people came streaming out.(大的。寬的) The drug is widely used in the tr

4、eatment of cancer（廣泛的）. 2022-2-127 begin to do begin doing 含義基本沒有很大區(qū)別。但如果談?wù)撘粋€(gè)長期的習(xí)慣動(dòng)作開始養(yǎng)成時(shí)，常常用begin doing. How old were you when you first begin playing the piano? 2.當(dāng)begin 后面是跟understand,realize, see, know, think 等動(dòng)詞，用begin to do. She began to think she was wrong after a second thought. 3當(dāng)begin 為beg

5、inning 時(shí) 后用to do, Are the farmers beginning to sell apples?2022-2-128 Work起作用，產(chǎn)生影響；行得通；奏效 Will your method work? 你的方法行嗎？ The medicine seems to be working. 藥好象起作用了。 Charge 1.充電 2.ask in payment 收費(fèi)，要價(jià) The hotel charged me $10 for a room for the night. 3. Rush in or as if in an attack 沖進(jìn)；進(jìn)擊 Suddenly th

6、e wild animal charged at us. 4. Command; give as a responsibility.命令；使負(fù)責(zé)she charged me to look after her son.2022-2-129 a great deal of 許多，大量/修飾不可數(shù)名詞 tear 1.to pull apart or into pieces by force,撕開，撕破 Why did you tear the cloth instead of cutting it with scissors? 你為什么撕布而不用剪刀剪呢？ 2. N. 眼淚 3. Tear down =destroy 4. Tear into sb. 痛打； 5. Tear up 撕碎2022-2-1210 tie 1.領(lǐng)帶 2.平局 3. 捆，栓， 系 tie to 總結(jié)您要進(jìn)行的工作2022-2-1211 conduct work tear charge tie REVIEWn a number ofn a great deal ofn begin to do /begin doingn high-highly