英語(yǔ)必修一unit1課件
英語(yǔ)必修一unit1課件
一、教學(xué)內(nèi)容：
Unit 1 of Module I Period Three（Grammar）
二、目標(biāo)與要求
1、學(xué)習(xí)一般現(xiàn)在時(shí)態(tài)和現(xiàn)在進(jìn)行時(shí)態(tài)。
2、一般現(xiàn)在時(shí)態(tài)和現(xiàn)在進(jìn)行時(shí)態(tài)表達(dá)將來(lái)的動(dòng)作。
3、對(duì)比一般現(xiàn)在時(shí)態(tài)和現(xiàn)在進(jìn)行時(shí)態(tài)，掌握它們的用法和區(qū)別，進(jìn)一步強(qiáng)化學(xué)生對(duì)該語(yǔ)法項(xiàng)目掌握的熟練程度和運(yùn)用能力。
三、語(yǔ)法講解
一般現(xiàn)在時(shí)
（一）時(shí)態(tài)構(gòu)成：
一般現(xiàn)在時(shí)主要由動(dòng)詞的原形表示，如果主語(yǔ)是第三人稱單數(shù)，則在動(dòng)詞原形后加-s或-es。
（二）時(shí)態(tài)的用法：
1、表示經(jīng)常發(fā)生的動(dòng)作、存在的狀態(tài)和現(xiàn)階段的習(xí)慣
常用的時(shí)間狀語(yǔ)有：often, sometimes, usually, always, seldom, in the morning, every day, on Sunday 等。如：
He is always ready to help others.
The students have sports at five every afternoon.
Does he work hard?
2、表示不受時(shí)間限制的事實(shí)或普遍真理
Three plus two is five.
A plane is faster than a car.
China is in Asia.
Light travels faster than sound.
3、在含時(shí)間和條件狀語(yǔ)從句的復(fù)合句中
主句用一般將來(lái)時(shí)，從句則用一般現(xiàn)在時(shí)表示將來(lái)動(dòng)作。如：
I will stay at home if it rains tomorrow.
She'll go to see him as soon as she arrives.
When they come, they'll tell you something important.
4、在含賓語(yǔ)從句的.復(fù)合句中
盡管主句用過(guò)去時(shí)態(tài)，但如果賓語(yǔ)從句所述內(nèi)容是客觀真理，從句謂語(yǔ)動(dòng)詞仍然用一般現(xiàn)在時(shí)。如：
The teacher told her pupils that the sun rises in the east.
5、表示已經(jīng)安排或計(jì)劃好將來(lái)必定會(huì)發(fā)生的動(dòng)作或存在的狀態(tài)
一般用be, come, go, arrive, leave, start等動(dòng)詞。如：
My birthday falls on May 2.
The meeting is at 2:00 p.m.
His ship leaves at 9:00 a.m.
6、圖片說(shuō)明、電影說(shuō)明、解說(shuō)戲劇內(nèi)容及場(chǎng)景
動(dòng)詞常用一般現(xiàn)在時(shí)。如：
Scene 1 ( Mary and Miss Green are in the professor's room-a large ,pleasant room with many books. There is a big desk near the window. )
7、幾個(gè)由here, there 開(kāi)頭的句子
動(dòng)詞用一般現(xiàn)在時(shí)表示現(xiàn)在正在進(jìn)行的動(dòng)作。如：
There goes the bell. Let's hurry.
Here comes the teacher.
現(xiàn)在進(jìn)行時(shí)：
（一）現(xiàn)在進(jìn)行時(shí)的構(gòu)成
現(xiàn)在進(jìn)行時(shí)由助動(dòng)詞be(am, is, are)+現(xiàn)在分詞構(gòu)成。am 用于第一人稱單數(shù)，is用于第三人稱單數(shù)， are用于其他各人稱。
（二）現(xiàn)在進(jìn)行時(shí)的用法
1）表示此時(shí)此刻正在進(jìn)行的動(dòng)作
The boys are reading magazines.
Are the students dancing?
Mr. Green is talking with Jim in the classroom.
2）表示目前這段時(shí)間內(nèi)正在進(jìn)行的動(dòng)作（盡管此時(shí)此刻該動(dòng)作并不在進(jìn)行中）
-What's he doing this week?
-He is translating a novel.
They are learning Chinese in Beijing.
I'm working for an American company.
3）現(xiàn)在進(jìn)行時(shí)常與副詞always, constantly 等連用，表示反復(fù)出現(xiàn)或習(xí)慣性的動(dòng)作，含有說(shuō)話者的贊揚(yáng)、不滿、討厭、遺憾等情緒。如
The girl is always smiling happily.
You're always making the same mistake.
She's constantly changing her mind. 她經(jīng)常改變主意
4）用進(jìn)行時(shí)表示過(guò)程
It's getting cold. 天氣變得越來(lái)越冷
The leaves on the trees are turning brown.
She's finding that chemistry is much more difficult than physics.
她漸漸感到化學(xué)比物理難學(xué)。
5）現(xiàn)在進(jìn)行時(shí)可用來(lái)表示按計(jì)劃安排即將發(fā)生的動(dòng)作（見(jiàn)一般將來(lái)時(shí)有關(guān)講解）
注意：英語(yǔ)里有些動(dòng)詞一般不用于進(jìn)行時(shí)，它們?cè)谛陆滩睦镆脖环Q為靜態(tài)動(dòng)詞。
①表示知覺(jué)的動(dòng)詞，如see, hear, smell, taste, notice, feel 等；
②表示態(tài)度和感情的動(dòng)詞，如believe, agree, like, hate, want, think 等；
③一些不表示具體動(dòng)作而表示某種抽象的關(guān)系或概念的動(dòng)詞，如have, depend, seem（似乎）, belong to（屬于）, consist（組成）, possess（擁有，占有）等。
但當(dāng)這些動(dòng)詞的詞義改變時(shí)便可用于進(jìn)行時(shí)。試比較：
I feel sick.
The doctor is feeling my pulse.
I can't see anything in the bowl.
Tom is seeing his friend off at the airport.
【家庭作業(yè)】
1. Exercises 2.3.4 of Lesson 1 on Page 54.
2. Exercises 1.2.3.4 of Lesson 3 on Page 58.
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