3. 读一读，选出正确的答案(填代号)。
()①—are you going to do on Mount Taishan?
—I'm going to see the sunrise.
A. Where
B. What
C. How
()②He wantshis grandpa.
A. to visit
B. visits
C. visit
()③—I wish you good luck.
—
A. Welcome!
B. Thank you.
C. I'm lucky.
()④—What is he going to do in Xi'an?
—
A. I'm going to learn kung fu.
B. He goes to visit the Ocean Park.
C. He's going to visit the museum.

①B ②A ③B ④C

① 答句回答的是要做的具体活动，询问“做什么”要用疑问词What，Where用于提问地点，How用于提问方式，选B。
② 本单元所学固定搭配为want to do sth.，表示“想要做某事”，want后要接to加动词原形，选A。
③ 对方送出祝福时，英语交际里要礼貌回应感谢，选B。
④ 问句是主语为he的be going to结构将来时问句，回答要对应主语he，且用be going to的将来时结构，只有选项C符合要求，选C。

4. 连词成句。
①to, I, going, in, am, July, Suzhou(.)

②the, see, wants, sunrise, He, to(.)

③going, What, the, at, do, are, you, to, Shaolin Temple(?)

①I am going to Suzhou in July.
②He wants to see the sunrise.
③What are you going to do at the Shaolin Temple?

本题围绕本单元核心的be going to表计划、打算的语法点展开，解题时先定位句子主语，再结合固定搭配和对应句式结构排序即可：
① 先确定主语I，搭配对应be动词am，使用固定结构am going to+地点Suzhou，最后添加时间状语in July，组成正确陈述句。
② 确定主语He，使用固定搭配want to do sth（主语是第三人称单数，动词用wants），后接动作see the sunrise，组成正确陈述句。
③ 该句是特殊疑问句，以疑问词What开头，后接be动词are、主语you，搭配going to do的结构，最后添加地点状语at the Shaolin Temple，句末用问号即可。