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1、Unit6 When was it invented?Period 4 Section B （la-le）【课前任务】一、核心单词1.salty adj. 2.sour adj. 3.cripy adj. 4.customer n.二、常考短语l.by 错误地 2.enough足够薄 3.in the 最后4.the customer happy 使顾客开心5.for a time 很长一段时间三、典型句子1 .薯片是无意中被创造的。Potato chips.2 .薯片是一个名叫乔治克拉姆的厨师创造的。Potato chips a chef George Crum.3 .顾客认为土豆不够薄。T
2、he customer thought the potatoes were not.【课中任务】一、持续默读（SSR）词数：218建议阅读时间：（Tlm,S4m）Hand washing: how does soap work?As people around the world work to slow the spread of COVID-19, everyone is telling us to wash our hands with soap. But is soap really necessary? Does soap work? How does it work? Cant y
3、ou just use water? Does water clean your hands? Not well enough. Viruses stick to the natural oil （a type of fat） on your skin. Water without soap isnt very successful in getting the viruses off your skin because water and oil dont mix. What is soap? Soap is made with some kind of fat or oil, water
4、and some kind of alkaline substance （碱性物质），such as a type of salt. It sometimes also has other things in it, such as perfumes （香料）or colors. How does soap work? The molecules （分子）of soap have one end that loves water and one end that loves oil. If you wash your hands with soap, the soap molecules ac
5、t as a link between the water youre washing with and the oil on your skin. A molecule of water joins to one end of the soap molecule and a molecule of oil joins to the other end. When you wash your hands, the whole lot washes off, lifting the oil off your skin and taking the viruses with it.1.Underl
6、ine the useful sentences.2.Say something about the passage.二、课中导学SteplWarming up(la) (T2m,S2m)1 .Greeting and ask:How does tea taste?How will the bread and snack taste?Can you think of any other flavor?2 .Show some pictures and ask:How do they taste?How many words that can describe the tastes of foo
7、d do you know?3 .Ask students to look at la on page45.4 .Write the words under the correct pictures.5 .Check their answers one by one.Step2 Practice (lb) (T2m,S3m).Ask students to look at the words in lb.1 .Ask some students to read their answers to the class.2 .The answers should be apple,candy, po
8、tato chips, lemon, etc.Step3 listening(lc) (T2m,S3m)1.Before listening, ask students:Can you tell me what they are?Do you like them?Do you want to know more about them?2 .Explain thin enough, salty enough, in the end=at last, make sb. do sth.3 .Play the recording.4 .Check the answers.5 .Listen again
9、 and finish the conversation on WB page45.Step4 listening(ld) (T3m,S4m).Listen to the conversation again.1 .Try to finish the sentences in Id.2 . Ask some students to read their sentences in front of the class.3 .Encourage some students to recite in front of the class.Step5 Pair-work (le) (T2m,S4m)G
10、et the students to make a conversation about the invention of potato chips. Use the information in 1c and Id. e. g.A : Do you like potato chips ?B:Yes, I.A : Who invented them ?B: They were invented by .A: When were them invented ?B: They were invented in .A :How were they invented ?B: They were inv
11、ented by .A: How did that happen?B:George Crum the potatoes really, really and then cooked them for a they were.And he lots of salt them so they were.Step6 链接新知(T3m,Slm)salty adj.咸的【语境领悟】The customer said they were not salty enough.顾客说它们不够咸。You put too much salt in the soup and its too salty.你在汤里放的盐
12、太多,它太咸了。【自主归纳】salty的用法salty为形容词，意为“咸的,含盐的”,是由“名词salt+-尸构成的形容词。【归纳拓展】“名词+-y”构成的形容词在英语中，很多名词后加-y可以构成形容词。例如：cloudcloudy, wind一windy, rain-rainy, sleep-sleepy 等。【学以致用】一Is the dish(salt)enough?Yes, it is.一Whats the weather like in Shanghai today?一Tfs(wind).1. by mistake错误地;无意中【语境领悟】Potato chips were inve
13、nted by mistake.薯片是无意中被创造的。Sally deleted an important file by mistake just now.萨莉刚才误删了 一份重要的文件。【自主归纳】by mistake的用法by mistake意为“错误地;无意中”,是介词短语,常在句中作状语。【归纳拓展】由mistake构成的其他短语(l)make a mistake/make mistakes意为“犯错；出错”，是动词短语，表示“在某方面 犯错”用介词in。I often make mistakes in grammar.我常在语法方面出错。(2)mistake. for.把错认成I
14、mistook Lily for Lucy yesterday.昨天我错把莉莉当成了露西。【学以致用】我错拿了你的钢笔。I took your pen.别再出错了。Dont any more.2. in the end 最后【语境领悟】The customer was happy in the end.顾客最后很高兴。He tried many times, and finally succeeded.他实验屡次,最后成功了。At last I obtained my wish.我的愿望终于实现了。In the end, Wang Ping got to the village.最后王萍到达了
15、那个村庄。【归纳拓展】由end构成的其他短语(l)at the end of意为“在终点；在结束时”，后接表示地点或时间的名词。Walk along the street and youll find the hospital at the end of the street.沿这条街往 前走,在街的尽头你就会找到那家医院。Well have an English test at the end of this week.这个周末我们要举行一次英语测试。(2)by the end of意为“到末为止This building will be finished by the end of thi
16、s year.这座楼将于今年年底竣工。【学以致用】他最后终于回到了家。He got back home.Step7 随堂检测(Tl, S2m)用所给动词的适当形式填空。1 . This kind of TV set(make ) in that factory .2 . The Great wall(know) to the people all over the word.They use knives(cut )things.3 .My clothes(wash ) once a week .4 .Whaf s it used for? For(keep) off the rain.5 .
17、the books(write) in English?Yes, they are.7.1 cant decide which book(buy ).8. They are busy(clean)the classroom.Step8 Summary (Tim)重点词组：l.by mistake 2.thin enough 3.salty enough 4. in the end 重点句型：1 .Potato chips were invented by mistake.2 .The customer thought the potato were not thin enough.3 .The
18、 customer said they were not salty enough.4 .George wanted to make the customer happy.5 .The customer was happy in the end.重点语法：passive voice:Potato chips were invented by mistake.【课后任务】一、阅读短文，在空格处使用括号中词语的正确形式填空。We have an old musical instrument. It(call) a clavichord (古钢琴).It (make) in Germany in 1
19、681. Our clavichord(keep) in the living room. It has belonged to our family for a long time. The instrument (buy) by my grandfather many years ago.Recently it(damage) by a visitor. She tried to play jazz on it! She struck the keys too hard and two of the strings were broken. My father was shocked. N
20、ow we (allow) to touch it. It (repair) by a friend of my fathers next week.二.完成句子.我错把咖啡倒在你的杯子里了。I have poured coffee into your cup.1 .这汤还不够酸。请再加点醋。The soup is not. Please add a little more vinegar.2 .雪天让人感到兴奋。Snowy days.3 .我们终于在天黑前赶到了那个村子。We arrived at the village before it was dark.4 .我和汤姆好长时间没见面了。I havent seen Tom