《Save the Tigers》Animals Are Our Friends PPT課件下載
第一部分內(nèi)容:課前自主預(yù)習(xí)
單詞闖關(guān)
1.世紀(jì)________→________(復(fù)數(shù))
2.fur________
3.symbol________
4.勇氣;膽量________
5.勇敢的;無(wú)畏的________
6.chain________
7.balance________
8.原因;動(dòng)機(jī);理由________
9.disappear ________ →________(反義詞)
10.殺死________
11.砍;切;剪;割_______→_______(過(guò)去式)
12.Decrease_____________
短語(yǔ)互譯
1.at the beginning of… ___________
2.drop to ____________
3.food chain ____________
4.in balance ____________
5.as well ____________
6.處于危險(xiǎn)狀態(tài)____________
7把……砍倒;減少 ____________
8……的象征 ____________
9……的數(shù)量 ____________
10.在……頂端 ____________
句型在線
1.在20世紀(jì)初期,野生老虎的數(shù)量大約是100000。
At the beginning of the 20th century, ______ ______ ________ tigers in the wild was around 100,000.
2.近幾年來(lái),老虎瀕臨滅絕。
________ ________ ________, tigers have been_____ _______ _______ disappearing.
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Save the TigersPPT,第二部分內(nèi)容:課堂互動(dòng)探究
詞匯點(diǎn)睛
at the beginning of 在……之初
[觀察] She left here at the beginning of this month.
月初她離開了這兒。
[探究] at the beginning of 表示“________________”,其后常接表示________的詞。beginning此處作名詞,意為“開始”。
[拓展] in the beginning 意為“起初,起先”,相當(dāng)于at first。
句型透視
At the beginning of the 20th century,the number of tigers in the wild was around 100, 000.
在20世紀(jì)初期,野生老虎的數(shù)量大約是100000。
[辨析] the number of與a number of
the number of
意為“……的數(shù)量”,相當(dāng)于the total of,后接可數(shù)名詞的復(fù)數(shù)形式,作主語(yǔ)時(shí),謂語(yǔ)動(dòng)詞用單數(shù)形式。
The number of the students in the room is 20.房間里學(xué)生數(shù)量是20。
a number of
意為“許多”,相當(dāng)于many, 可被large, small, great等修飾,后接可數(shù)名詞的復(fù)數(shù)形式,作主語(yǔ)時(shí),謂語(yǔ)動(dòng)詞用復(fù)數(shù)形式。
A great number of girls like shopping online.
很多女孩喜歡網(wǎng)購(gòu)。
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