英語(yǔ)必修一unit1課件
英語(yǔ)必修一unit1課件
一、教學(xué)內容：
Unit 1 of Module I Period Three（Grammar）
二、目標與要求
1、學(xué)習一般現在時(shí)態(tài)和現在進(jìn)行時(shí)態(tài)。
2、一般現在時(shí)態(tài)和現在進(jìn)行時(shí)態(tài)表達將來(lái)的動(dòng)作。
3、對比一般現在時(shí)態(tài)和現在進(jìn)行時(shí)態(tài)，掌握它們的用法和區別，進(jìn)一步強化學(xué)生對該語(yǔ)法項目掌握的熟練程度和運用能力。
三、語(yǔ)法講解
一般現在時(shí)
�。ㄒ唬⿻r(shí)態(tài)構成：
一般現在時(shí)主要由動(dòng)詞的原形表示，如果主語(yǔ)是第三人稱(chēng)單數，則在動(dòng)詞原形后加-s或-es。
�。ǘ⿻r(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)和現階段的習慣
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)從句的復合句中
主句用一般將來(lái)時(shí)，從句則用一般現在時(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)從句所述內容是客觀(guān)真理，從句謂語(yǔ)動(dòng)詞仍然用一般現在時(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)戲劇內容及場(chǎng)景
動(dòng)詞常用一般現在時(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)詞用一般現在時(shí)表示現在正在進(jìn)行的動(dòng)作。如：
There goes the bell. Let's hurry.
Here comes the teacher.
現在進(jìn)行時(shí)：
�。ㄒ唬┈F在進(jìn)行時(shí)的構成
現在進(jìn)行時(shí)由助動(dòng)詞be(am, is, are)+現在分詞構成。am 用于第一人稱(chēng)單數，is用于第三人稱(chēng)單數， are用于其他各人稱(chēng)。
�。ǘ┈F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）現在進(jìn)行時(shí)常與副詞always, constantly 等連用，表示反復出現或習慣性的動(dòng)作，含有說(shuō)話(huà)者的贊揚、不滿(mǎn)、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）現在進(jìn)行時(shí)可用來(lái)表示按計劃安排即將發(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)，它們在新教材里也被稱(chēng)為靜態(tài)動(dòng)詞。
�、俦硎局X(jué)的動(dòng)詞，如see, hear, smell, taste, notice, feel 等；
�、诒硎緫B(tài)度和感情的動(dòng)詞，如believe, agree, like, hate, want, think 等；
�、垡恍┎槐硎揪唧w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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