外研版七年級英語上冊《Language in use》People and places PPT教學(xué)課件，共20頁。
Learning Objectives
By the end of the class, we will be able to:
1. learn to use present continuous tense.
2. know about time zones.
現(xiàn)在進(jìn)行時(1)
現(xiàn)在進(jìn)行時表示：1.說話時正在進(jìn)行的動作，2.現(xiàn)在正在進(jìn)行的動作。例如：
He is watching TV now.
He is drinking a glass of water.
We are working on a farm these days.
I am writing a book this year.
一、 現(xiàn)在進(jìn)行時的構(gòu)成: 助動詞be + V-ing。
請大家注意觀察，其中的助動詞be 隨著人稱、數(shù)的變化而變化(am, is, are三種形式) 。
I’m visiting my friend.
He is eating an ice cream.
We’re preparing for Spring Festival.
They are lying in the sun.
二、句型轉(zhuǎn)換
在變?yōu)榉穸ň鋾r, be后加not； 在變?yōu)橐话阋蓡柧鋾r把be提前到句首, 人稱和 be 作相應(yīng)變化。
My mum is walking home.
→My mum is not walking home.
→Is your mum walking home?
Tony is taking photos.
→Tony is not taking photos.
→Is Tony taking photos?
三、動詞-ing的構(gòu)詞規(guī)律:
①一般情況下，動詞后面直接加-ing
doing buying playing
② 以字母e結(jié)尾的動詞，去掉e，然后加-ing
having taking giving writing
③重讀閉音節(jié)、末尾只有一個輔音字母的, 雙寫動詞最后一個字母, 然后加ing。
running swimming sitting
shopping getting beginning putting
④特殊形式的變化
lie — lying die —dying
四、使用場合
1.當(dāng)句子中有now,或當(dāng)句子以look、listen開頭時,通常采用現(xiàn)在進(jìn)行時。
My brother is sleeping now.
Look! The students are having an English class now.
Listen! She is singing over there.
2.當(dāng)表示當(dāng)前一段時間內(nèi)正在進(jìn)行的動作、且句中有this week, these days等時間狀語時,通常用現(xiàn)在進(jìn)行時。
We are working on a farm these days.
We are studying Unit 1 this week.
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關(guān)鍵詞：Language in use PPT課件免費下載，People and places PPT下載，.PPTX格式；
