19．Look!Pingpingis swimming （ swim ） in the pool．

分析 看！平平正在池子里游泳．

解答 答案：is swimming
根據(jù)所給詞swim是動詞意為"游泳"結(jié)合句子結(jié)構(gòu)可知在句中作謂語．根據(jù)關(guān)鍵詞look"看"可知此處強(qiáng)調(diào)正在做某事，故使用現(xiàn)在進(jìn)行時態(tài)，其結(jié)構(gòu)為is/am/are+現(xiàn)在分詞，根據(jù)主語Pingping是第三人稱單數(shù)，故動詞be用is，swim的現(xiàn)在分詞為swimming，故填is swimming

點(diǎn)評 本題主要考查完成句子，首先要根據(jù)所給句子，分析判斷所需要的時態(tài)，然后確定句式特點(diǎn)，抓住重點(diǎn)詞匯和短語，把句子補(bǔ)充完整．本題主要考查現(xiàn)在進(jìn)行時態(tài)在本題中要注意該時態(tài)的結(jié)構(gòu)為is/am/are+現(xiàn)在分詞，以及swim變現(xiàn)在分詞要雙寫m加ing．

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