四、根据图片及语境提示完成句子
1.
A:Hello, Wang Han. This is He Jun. ?
B:Hi, He Jun. I'm learning to make zongzi. you?
A:Well, I'm watching boat races on TV.
2.
A:Hello,Cindy. This is John. Are you busy right now?
B:Hi,John. . Is there anything I can do for you?
A:Yeah. There's a difficult maths problem.
3.
A:Is Tom doing his homework?
B:No,he isn't. .
A:How about you?
B:I'm reading a book and waiting for him.

1. What are you doing (right) now; What/How about
2. I'm washing clothes
3. He is shopping in the supermarket

【分析】做此类补全对话题目，需结合上下文语境、答句时态（均为现在进行时）推导空缺内容：第1题根据B的答语（正在做某事）推导问句，再根据A的答语推导反问句；第2题根据B后续愿意帮忙的表述推导B的状态；第3题根据A的提问和B的否定答语，结合后句推导Tom的行为，且所有句子需用现在进行时。
【解析】1. 第一空：B答语为现在进行时（I'm learning...），说明A询问B正在做的事，故填What are you doing (right) now；第二空：A答自己在看龙舟赛，B需反问A的情况，用固定表达What/How about you。2. A问B是否忙，B后说“Is there anything I can do for you”（愿意帮忙），说明B不忙，结合现在进行时，填日常动作表达I'm washing clothes。3. A问Tom是否在做作业，B否定，结合后句“waiting for him”，可知Tom在做其他事，用现在进行时，填He is shopping in the supermarket。
【答案】1. What are you doing (right) now; What/How about 2. I'm washing clothes 3. He is shopping in the supermarket
【知识点】现在进行时；情景交际补全对话
【点评】本题考查日常情景对话的语境理解与现在进行时的运用，需结合上下文逻辑推导，属于基础英语交际题型，难度适中。
【难度系数】0.6