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根據(jù)內(nèi)容提示完成句子

The function of the smile is to show happiness and _________(使人放松)．

根據(jù)內(nèi)容提示完成句子

Nobody before Jane fully understood chimp behaviour．She spent years ________(觀察并記錄)their daily activities．

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The teacher told us to _________(將難懂的單詞劃線)and look them up in the dictionary．

根據(jù)內(nèi)容提示完成句子

This character was a little failure but was loved for his optimism and ________(戰(zhàn)勝一切困難的決心)．

根據(jù)內(nèi)容提示完成句子

________(這里一定有什么誤會)．I don’t know what you’re talking about．

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Since no one really knows whether GM food is safe, many countries have _________　_________　_________　_________　_________ the production of GM foods, as they would rather be _________ with this new technology．由于沒有人確切地知道轉基因食品是否安全，許多國家在是否允許生產(chǎn)轉基因食品問題上猶豫不決，他們寧愿對這項新技術持謹慎態(tài)度。

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Research has been _________　_________　_________ production _________, rather than _________　_________ that GM foods are safe．GM food could therefore be dangerous．

目前的研究僅局限于增加生產(chǎn)利潤，而不是確保轉基因食品的安全。因此食用轉基因食品可能是危險的。

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_________　_________, this _________ has been used to produce plants which are better able to _________　_________　_________ pests and disease．

迄今為止，這項技術已經(jīng)被用來生產(chǎn)能更好地抵御蟲害和疾病的植物。

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However, some people believe that cloning human embryos with the _________ of _________ them _________　_________　_________　_________ human life．

但是，有些人認為懷著摧毀人類胚胎的意圖來克隆人類胚胎是對人類生命的不尊重。

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This project _________　_________ farmers _________ their crops with trees or grass．It has already been a _________ because it has helped improve the local _________ and the land around the river．

這個項目使得農(nóng)民退耕還林或退耕還草。這個項目已經(jīng)取得成功，因為它有效地改善了當?shù)氐沫h(huán)境和江邊的土地情況。