新人教版八年級(jí)上冊(cè)英語(yǔ) Unit 8 第2課時(shí) 教學(xué)課件

1、Unit 8 How do you make a banana milk shake?Section A (Grammar Focus3c)學(xué)習(xí)目標(biāo)學(xué)習(xí)掌握可數(shù)名詞與不可數(shù)名詞的區(qū)別；能夠就“如何做某件事”進(jìn)行相互問答。學(xué)習(xí)掌握祈使句的肯定形式和否定形式；能夠用表順序的詞first, next, then及finally來(lái)描述爆米花的制作過程；學(xué)習(xí)新詞：sugar, cheese, popcorn, corn, machine, dig, hole；新課導(dǎo)入思 考Can you describe the process to make fruit salad? 新課講解Grammar Focu

2、s根據(jù)課本內(nèi)容，完成下列句子。 1. 你怎樣做香蕉奶昔？ _ do you _ a banana milk shake?2. 首先，將香蕉剝皮。 _, _ the bananas. 3. 接下來(lái)，將香蕉放入果汁機(jī)中。 _, _ the bananas in the blender. 4. 然后，將牛奶倒進(jìn)果汁機(jī)中。 _, _ the milk _ the blender.First peelHow makeNext putThen pour into新課講解5. 最后，打開果汁機(jī)。 _, _ _ the blender.6. 我們需要多少香蕉？ _ _ bananas do we need?

3、7. 我們需要三只香蕉。 We _ three _. 8. 我們需要多少酸奶？ _ _ yogurt do we need? 9. 我們需要一茶杯。 We need _ _ _ yogurt. Finally turn onHow manyneed bananasHow much one cup of 新課講解Language point 1（一）祈使句的用法考點(diǎn) 1祈使句常常是表達(dá)說(shuō)話人對(duì)對(duì)方的勸告、叮囑、請(qǐng)求或命令等。祈使句中一般沒有主語(yǔ)，實(shí)際上是省略了主語(yǔ)you。祈使句一般沒有時(shí)態(tài)的變化，也不能與情態(tài)動(dòng)詞連用。在表達(dá)請(qǐng)求或勸告時(shí)，在祈使句前或句末可加上please，以使句子的語(yǔ)氣更加緩和

4、或客氣。祈使句的句式特征考向一考向二新課講解（1）行為動(dòng)詞原形其他成分eg: Make sentences after the model.根據(jù)例句造句。Have a good time. 愿你玩得痛快。（2）Be動(dòng)詞其他成分(形容詞、名詞或介詞短語(yǔ)等)eg: Be careful when crossing the road. 過馬路時(shí)要小心?？键c(diǎn) 2祈使句的肯定句式祈使句的肯定句式一般分為以下三種類型：考向一（3）Let賓語(yǔ)動(dòng)詞原形其他成分.eg: Let him go back now. 讓他現(xiàn)在回去吧。新課講解考點(diǎn) 3祈使句的否定句式祈使句的否定句式，通常情況下在句首加上Dont或Ne

5、ver，一般分為以下四種類型：（1）在祈使句的肯定句式前加Dont，構(gòu)成“Dont行為動(dòng)詞原形其他成分”。eg: Dont say that again！別再那樣說(shuō)了！考向（2）在Be動(dòng)詞引起的肯定祈使句前加Dont，構(gòu)成 “Dont be其他成分(形容詞、名詞或介詞短語(yǔ)等).” 新課講解（3）Let引起的祈使句的否定形式有兩種： Let開頭的祈使句，如果后面跟第一人稱的賓格，在Let后賓格的后面加not。eg: Let me not go with her tomorrow. 不要讓我明天跟她一起去。Lets not tell her the truth whenever we meet h

6、er. 無(wú)論什么時(shí)候我們碰到她，都不要告訴她真相。 Let的賓語(yǔ)是第三人稱時(shí)，常在Let前加Dont。eg: Dont let them make any noise. 別讓他們吵。新課講解（4）在公共場(chǎng)合的提示語(yǔ)中，否定祈使句常用 “No名詞/v.-ing形式”結(jié)構(gòu)，表示 “禁止做某事。”No Photos！禁止拍照！No Entry! 禁止入內(nèi)！No passing！禁止通行！No smoking! 禁止吸煙！新課講解Language points 2 如何問答名詞的數(shù)量1. 詢問不可數(shù)名詞的數(shù)量： _ + 不可數(shù)名詞 ? How much3. 詢問可數(shù)名詞的數(shù)量： _ + 可數(shù)名詞? 2

7、. 回答不可數(shù)名詞的數(shù)量： _ + 不可數(shù)名詞 一杯 _; 一碗 _數(shù)量詞How manya cup ofa bowl of新課講解3a1. How ( much /many) bananas do we need?2. How (much / many) sugar do we need?3. How ( much / many) bread do we need?4. How ( much / many) tomatoes do we need?5. How ( much /many) cheese do we need? Circle the correct word in each q

8、uestion.新課講解3bComplete the questions and answers. Then match them._ 1. _ do you make popcorn?_ 2. _ corn do we need?_ 3. _ do we do next?_ 4. _ salt do we need?_ 5. Now can we eat it?新課講解a. Half a cup.b. _, put the corn into the popcorn machine.c. Yes, we can!d. Next, _ on the machine. _, add the sa

9、lt.e. Just one spoon.新課講解b. First, put the corn into the popcorn machine.Check the answers._ 1. How do you make popcorn?_ 2. How much corn do we need?_ 3. What do we do next?_ 4. How much salt do we need?_ 5. Now can we eat it?c. Yes, we can!a. Half a cup.d. Next, turn on the machine. Finally, add t

10、he salt.e. Just one spoon.adecb新課講解Language points 2Half a cup.half a/an/the半、一半。 half a cup of半杯的。It took us half an hour to go half a mile.我們花半小時(shí)走了半英里。Please give me half a cup of tea.I am a little thirsty.請(qǐng)給我半杯茶。我有點(diǎn)兒渴了。【注意】half of作主語(yǔ),of后接單數(shù)可數(shù)名詞/不可數(shù)名詞或代詞賓格it時(shí),謂語(yǔ)動(dòng)詞用單數(shù);若接復(fù)數(shù)可數(shù)名詞或代詞賓格them時(shí),謂語(yǔ)動(dòng)詞用復(fù)數(shù)。Hal

11、f of the students are good at English.一半的學(xué)生擅長(zhǎng)英語(yǔ)。Half of his money is lost.他一半的錢丟了。新課講解3cplant a treemake beef noodleswash clothestake out a book from the libraryWrite how to do one of the following things. Then tell your partner how to do it. 新課講解Language points 3how to plant a tree為“疑問詞動(dòng)詞不定式”結(jié)構(gòu)，在句中

12、作know的賓語(yǔ)。不定式可以和疑問詞who, what, which，when, how, where等連用，構(gòu)成不定式短語(yǔ)，在句子中作主語(yǔ)、賓語(yǔ)、表語(yǔ)等。Do you know how to plant a tree？你知道怎么種樹嗎？當(dāng)堂小練一、詞語(yǔ)運(yùn)用1.How many (tomato) do you need? 2.Do you know how (plant) a tree? 3.Some popcorn (be) in a paper bag. 4.Please (cut) up three apples. 5.Put two (spoon) of honey on the salad.tomatoesto plantiscutspoons當(dāng)堂小練二、根據(jù)漢語(yǔ)意思完成句子1.我們需要多少奶酪?do we need? 2.我需要半杯水。 We needwater. 3.最后加一些鹽到爆米花里。Finally, the salt popcorn. 4.你知道怎樣種樹嗎?Do you knowa tree