《Save the Tigers》Animals Are Our Friends PPT课件下载
第一部分内容:课前自主预习
单词闯关
1.世纪________→________(复数)
2.fur________
3.symbol________
4.勇气;胆量________
5.勇敢的;无畏的________
6.chain________
7.balance________
8.原因;动机;理由________
9.disappear ________ →________(反义词)
10.杀死________
11.砍;切;剪;割_______→_______(过去式)
12.Decrease_____________
短语互译
1.at the beginning of… ___________
2.drop to ____________
3.food chain ____________
4.in balance ____________
5.as well ____________
6.处于危险状态____________
7把……砍倒;减少 ____________
8……的象征 ____________
9……的数量 ____________
10.在……顶端 ____________
句型在线
1.在20世纪初期,野生老虎的数量大约是100000。
At the beginning of the 20th century, ______ ______ ________ tigers in the wild was around 100,000.
2.近几年来,老虎濒临灭绝。
________ ________ ________, tigers have been_____ _______ _______ disappearing.
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Save the TigersPPT,第二部分内容:课堂互动探究
词汇点睛
at the beginning of 在……之初
[观察] She left here at the beginning of this month.
月初她离开了这儿。
[探究] at the beginning of 表示“________________”,其后常接表示________的词。beginning此处作名词,意为“开始”。
[拓展] in the beginning 意为“起初,起先”,相当于at first。
句型透视
At the beginning of the 20th century,the number of tigers in the wild was around 100, 000.
在20世纪初期,野生老虎的数量大约是100000。
[辨析] the number of与a number of
the number of
意为“……的数量”,相当于the total of,后接可数名词的复数形式,作主语时,谓语动词用单数形式。
The number of the students in the room is 20.房间里学生数量是20。
a number of
意为“许多”,相当于many, 可被large, small, great等修饰,后接可数名词的复数形式,作主语时,谓语动词用复数形式。
A great number of girls like shopping online.
很多女孩喜欢网购。
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