题目

用方框中所给单词的适当形式填空 luck;sweater;quite;beautiful;happen 【1】My sister is tall and __.【2】It is __ hot today.【3】What's __ over there?Let's go and see.【4】It's a __ day for me.I win the game.【5】Tony, put away your __. 答案:【答案】【1】beautiful【2】quite【3】happening【4】lucky【5】sweater(s)【解析】【1】句意:我妹妹又高又漂亮。根据空前tall and可知,此空应填形容词作表语,根据句意和所给单词提示可知,故答案为beautiful。【2】句意:今天相当热。根据空后形容词hot可知,此空应填副词,根据句意和所给单词提示可知,函数f(x)=lgx+ax在区间(1,10)上有唯一的零点,则实数a应满足的条件为(  ) A、a(a+10)>0B、a(a+10)<0C、a(a+1)>0D、a(a+1)<0
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