14．很多珍稀動(dòng)物已經(jīng)滅絕的原因是它們無(wú)法適應(yīng)新的環(huán)境，因此我們必須更加注重保持生態(tài)平衡． （so）The reason why many rare animals became extinct was that they were not able to adapt （themselves） to the new environment，so we must pay more attention to keeping the balance of nature．．

分析 The reason why many rare animals became extinct was that they were not able to adapt （themselves） to the new environment，so we must pay more attention to keeping the balance of nature．

解答 The reason why many rare animals became extinct was that they were not able to adapt （themselves） to the new environment，so we must pay more attention to keeping the balance of nature．
本句的主句部分是分析的動(dòng)物已經(jīng)滅絕的原因，所以為一般過(guò)去時(shí)；而從句部分則為現(xiàn)在的對(duì)策，應(yīng)用一般現(xiàn)在時(shí)．
本句為一復(fù)雜的主從復(fù)合句，其中主句的主語(yǔ)后面應(yīng)用一個(gè)why引導(dǎo)的定語(yǔ)從句來(lái)修飾，后面的原因部分用that引導(dǎo)的表語(yǔ)從句；從句為so引導(dǎo)的結(jié)果狀語(yǔ)從句．become extinct滅絕；adapt（oneself）to使（自己）適應(yīng)；pay attention to注意；the balance of nature自然平衡、生態(tài)平衡．

點(diǎn)評(píng) 本句句式較復(fù)雜，學(xué)生有的容易用混句型，要逐步分清不同的句式以及在句子中的相應(yīng)成分，分清主從句．如：Whether he will come to the meeting is up to his boss．

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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

5．When my brother and I were young，my mom would take us on Transportation Days．
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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

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What I failed to expect was that several students were absent，which threw off my estimate．As Mrs．Totten made her way from the beginning of the class，I desperately tried to determine which math problem I would get．I tried to work it out before she got to me，but I had brain freeze and couldn't function．
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"Correct，"she said．
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What did I learn that day？First，always do all your homework．Second，in real life it isn't always what you say but how you say it that matters．Third，I would never make it as a mathematician．
If I could choose one school day that taught me the most，it would be that one．

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B．It is important to make an effort
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B．A Future Mathematician
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