1.What can we learn about Grandpa Amu?

A He was inspired to make toys by his grandson.

B He made the videos of creating woodwork by himself.

C He came up with the idea of spreading China’s culture.

D He was successful for Chinese carpenter’s traditional skills.

解析：选D。细节理解题。根据文章第一段第一句A 63-year-old Chinese carpenter’s traditional skills have become an Internet sensation as he creates woodwork with nothing more than a single piece of wood, without glue, screws or nails. 可知，阿木爷爷的中国木匠的传统技艺在互联网上引起了轰动，因为他只用一块木头，不用胶水、螺丝钉或钉子就可以做木工，故选D。

2.What was key to be a great carpenter according to Grandpa Amu?

A You are born talented.

B You should be passionate.

C You need enough patience.

D You own much creativity.

解析：选B。推理判断题。根据文章第二段"If you do something, you have to love it, and you have to be interested in it; however, being interested doesn't mean there's only happiness and no pain," Grandpa Amu shared when talking about his excellent carpentry skills.可知，阿木爷爷在谈到自己高超的木匠技艺时表示，做事情必须热爱它，必须对它感兴趣，换句话说必须充满激情，故选B。

3.Grandpa Amu made the wooden arch bridge _______.

A with glue and screws

B through modern crafts

C by using only a piece of wood

D without nails or glue

解析：选D。细节理解题。根据文章第三段最后一句Grandpa Amu follows an ancient Chinese mortise and tenon technique, which means no nails or glue are involved in the entire process of building the arch bridge.可知，阿木爷爷遵循中国古代的榫卯(mortise and tenon)技术，也就是说在建造木拱桥的整个过程中不涉及钉子或胶水，故选D。

4.What urged Grandpa Amu to work as a carpenter?

A His early living conditions.

B His early interest in woodworking.

C His grandson’s requirements.

D Passing on the traditional culture.

解析：选A。推理判断题。根据文章最后一段第一句His wonderful woodworking skills, using the same mortise and tenon joints found in the Forbidden City, were developed from the age of thirteen as a way of supporting his family in East China's Shandong Province.可知，阿木爷爷出色的木工技术是从他早年发展起来的，当时木工手艺是作为养家糊口的一种方式，由此推测他早期的生活条件促使他成为一名木匠，故选A。