12.adopt vt.采纳；采用；收养→adoption n．采纳；采用；收养

　　13.exhibition n．展览→exhibit v．展览；展示

　　14.expression n．表现；表达→express vt.表达；表现

　　15.destroy vt.破坏；毁坏→destruction n．破坏；毁坏→destructive adj.毁坏性的；破坏性的

　　16.observe vt.观察；注意到→observation n．注意，观察 用所给词的适当形式填空

　　1.After many years of observation,_he has observed that lions have their unique way to communicate.(observe)

　　2.He expressed in his speech that he would support us and the expression on his face suggested that he meant what he said.(express)

　　3.In reality,_I have realised that I must stop daydreaming and be realistic.(realise)

　　4.Tom, an adopted child, was adopted at the age of four and his success in life was largely due to the adoption.(adopt)

　　5.To our delight,_the delightful picture drawn by my brother made all the judges delighted so he got the first prize.(delight)

　　6.Children always like to imitate adults and their imitation will make you laugh a lot from time to time.(imitate)

　　7.It is because of various colours that we have a colourful world.(colour) 1.“真真假假”知多少

　　①real adj.真实的，实际的

　　②true adj.

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