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21. They are in the school. (對(duì)句子進(jìn)行提問)_______ _______ they?【答案】 (1). Where (2). are【解析】【分析】【詳解】句意:他們?cè)趯W(xué)校里。句意是他正在做飯?!?2題詳解】sleep的ing形式為sleeping,故答案為sleeping。C選項(xiàng)“湯姆在臥室?!狈险Z境,故選B。可推出主語是:他在干什么?什么what,想,在進(jìn)行時(shí)在后面寫出一個(gè)動(dòng)詞doing,故選B。2. — is he ? ( )—He is reading.A. What;do B. What;doing C. Where;doing【答案】B【解析】【詳解】答語句意:他正在讀書。主語用第一人稱,B選項(xiàng)“我正在做飯?!?題詳解】句意:湯姆在哪里?答語說出湯姆的位置?!?1題詳解】write的ing形式為writing,故答案為writing。 18. What is he doing? (用cook作答)He _______ _______.【答案】 (1). is (2). cooking【解析】【分析】【詳解】句意:他正在做什么?用cook作答。句子是現(xiàn)在進(jìn)行時(shí),對(duì)動(dòng)作提問用疑問詞what,后面加上doing,特殊疑問詞+be+主語+doing,故答案為What;are;doing。【26題詳解】寫一封信write a letter,是動(dòng)詞短語,故答案為write a letter?!?0題詳解】cook dinner,動(dòng)詞短語,翻譯為:做晚餐?!?3題詳解】圖片上在唱歌。與圖片相符,故選C。38. They are listening _______ (to / on) music.【答案】to【解析】【分析】【詳解】句意:他們正在聽音樂。點(diǎn)睛】42. My mother is _______ (cook / cooking) dinner.【答案】cooking【解析】【分析】【詳解】句意:我的媽媽正在做晚飯?!军c(diǎn)睛】40. I want