初中英语冀教版八年级下册Lesson 17 Save the Tigers说课ppt课件
展开The teaching gals
Language knwledge掌握词汇: century,curage,brave,r easn,kill,cut(cut,cut)接触词汇:fur,symbl,chain,balance,disappear,decrease短语和句型:at the beginning f..., drp t, fd chain, in danger, cut dwn, as well
century [ˈsentʃərɪ] fur [fɜː]symbl ['sɪmb(ə)l]curage ['kʌrɪdʒ]brave [breɪv]chain [tʃeɪn]
n. 世纪n. (兽类的)毛n. 标志,象征n. 勇气,胆量adj. 勇敢的,无畏的n. 链子;链条
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balance ['bæləns]reasn ['riːzn]disappear [dɪsə'pɪə]kill [kɪl]cut [kʌt]decrease [dɪ'kriːs]
n. 平衡,平稳n. 原因,动机,理由v. 消失,失踪v. 杀死v. 砍,切,剪,割v. 使……变小;减少
at the beginning f..., drp t, fd chain, in balance in danger, cut dwn, as well
在...之初下降到;跌至食物链保持平衡处于危险状态把...砍倒;减少(除某人或某事外)还;也
Structures and Expressins
1.At the beginning f (在…之初) the 20th century, the number f (...的数目,数量) tigers in the wild was arund 100 000 .at the beginning f... 意为“在...之初”,其后常接表示时间的词。例句:我们四月初要去美国。We're ging t USA at the beginning f April.
knwledge pints
century n. 世纪 复数:centuries 第...世纪:the + 序数词 + century 例句:这座大楼是19世纪建造的。 The building was built in the 19th century. 在某世纪某年代:in the+年代+f+the+序数词+century 例句:我的姐姐出生在20世纪80年代。 My sister was brn in the eighties f the twentieth century. =My sister was brn in the 1980s.
the number f 意为“...的数量” the number f + 可数名词复数形式。 作主语时谓语动词要用单数形式。 例句:房间里的学生数是43. The number f the students in the rm is 43. 辨析:a number f 表示“若干,很多”,相当于many a number f + 复数名词 例句:许多孩子在公园里。 A number f children are in the park.
This success marked the new ___ (begin) in her career.During the___(20)century,English becme a wrld language.The number f peple in the city___abut seven millin nw. A.are B.has C.is 答案: beginning twentieth C
But tday that number has drpped t a few thusand. 表示概数时,hundred,thusand,millin加s+f. 中考链接: ___peple watched the rcket flying up int the sky. A.Thusand B.Thusands C.Thusands f 答案:C
Tigers are symbls f strength and curage. curage n. 勇气;胆量 encurage v. 鼓励。 encurage sb. t d sth.鼓励某人做某事。 例句:老师鼓励我们勇敢地尝试。 The teacher encurages us t have a try bravely
Fr this reasn,tigers are imprtant t the envirnment.reasn:“原因,动机,理由”,从逻辑推理上得出的结论性原因,不直接说明起因。cause:起因,原因。指引起某种结果的必然原因,常和effect连用,表示因果关系。excuse:指为免受指责和推卸责任而找的“理由,原因”,就是我们常说的“借口”。
Peple have cut dwn a lt f trees as well.as well 也,同样。常置于句末,前面无逗号,一般用于肯定句中。als,副词,位于句中,放在be动词/助动词/情态动词之后,行为动词之前,多用于肯定句中。t,副词,多用于口语,常用于肯定句句尾,前常有逗号和主句隔开。as well,副词短语,多用于口语,用于句尾,其前不用逗号与句子分开。either,副词,用于否定句中,常置于句末。在肯定句变否定句时,其中的als,t,as well都要改为either.
sme peple hunt and kill tigers fr mney.
They als have cut dwn(砍伐) a lt f trees as well(也).
The tigers are in danger f (处于危险之中)disappearing.
Fill in the blanks.
1. _____________ students is abut twenty. (……的数量)2. It’s ____________ yur health. (对……是重要的)3. The river is plluted and ___________ ging dry.(处于……危险中)
The number f
in danger f
Try t be excellent!
4. _________________ the party, he gave me a gift. (在……之初)5. The temperature has __________ belw zer. (下降到)6. It is at the bttm f the _________. (食物链)7. Yu knw, cmputers bring trubles _______. (也)
At the beginning f
Other wild animals are in danger as well.
the Bengal tiger (孟加拉虎)
the Siberian tiger(西伯利亚虎)
the Sumatran tiger(苏门答腊虎)
the Malayan tiger(马来亚虎)
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