Ⅰ.找出句中的合成词，并写出其在句中所作的成分 1.Sightseeing took up the whole morning. 2.Someone is asking for you on the phone. 3.You must keep a sharp lookout for this sign. 4.No smoking during take-off. 5.She greeted them warm-heartedly.

◆语法感知

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_________________ ______________ ______________ ______________ _____________________

sightseeing；主语

someone；主语

lookout；宾语

take-off；宾语

warm-heartedly；状语