Grandpa Amu's most popular video，which shows him making a delicate wooden arch bridge，has gone viral on YouTube，gaining more than 40 million views. "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. His most popular works include a folding stool，a model of the China pavilion from the 2010 Shanghai Expo，and an apple-shaped interlocking puzzle，known as a Lu Ban lock.Grandpa Amu follows an ancient Chinese mortise and tenon（榫卯） technique，which means no nails or glue are involved in the entire process of building the arch bridge. The master carpenter has also made several wooden toys for his grandson using the same technique.His young grandson's favorites include a walking Peppa Pig and a bubble blowing machine.Attracting over 1.17 million fans on YouTube，Grandpa Amu's videos so far have gained more than 200 million views. 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. "The grandson is so happy，as there have been so many fine and unique toys made by grandpa from an early age，" commented one netizen；while another said "It's amazing.I hope these traditional crafts can be passed on!"（1）What do we know about Grandpa Amu from the first paragraph？ ____ A．He is made fun of on the Internet.B．He aims at spreading Chinese culture.C．He is well known for his carpentry skills on the Internet.D．He has made a lot of fortune on the Internet.（2）What can we infer about Grandpa Amu's words in Paragraph 2？ ____ A．Outstanding skills lie in diligent work.B．Success depends on passion.C．Happiness comes from interest.D．Theory is from practice.（3）What is the unique feature of Grandpa Amu's craft works？ ____ A．The apple shape.B．The folding stool.C．No nails or glue.D．The wooden material.（4）What probably made Grandpa Amu work as a carpenter？ ____ A．The support of his family.B．His interest in woodworking.C．His grandson's requirement .D．His wishes to pass on the traditional crafts.

A 63-year-old Chinese carpenter's traditional skills have become an unexpected Internet hit as he creates woodwork with a single piece of wood，without glue，screws or nails.Wang De wen，known as "Grandpa Amu" on YouTube，has been praised as the modern day Lu Ban，a well-known Chinese structural engineer during the Zhou Dynasty，thanks to his rich carpentry（木工手艺） knowledge.
    Grandpa Amu's most popular video，which shows him making a delicate wooden arch bridge，has gone viral on YouTube，gaining more than 40 million views. "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.
    His most popular works include a folding stool，a model of the China pavilion from the 2010 Shanghai Expo，and an apple-shaped interlocking puzzle，known as a Lu Ban lock.Grandpa Amu follows an ancient Chinese mortise and tenon（榫卯） technique，which means no nails or glue are involved in the entire process of building the arch bridge.
    The master carpenter has also made several wooden toys for his grandson using the same technique.His young grandson's favorites include a walking Peppa Pig and a bubble blowing machine.Attracting over 1.17 million fans on YouTube，Grandpa Amu's videos so far have gained more than 200 million views.
    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. "The grandson is so happy，as there have been so many fine and unique toys made by grandpa from an early age，" commented one netizen；while another said "It's amazing.I hope these traditional crafts can be passed on!"

（1）What do we know about Grandpa Amu from the first paragraph？ ____
A．He is made fun of on the Internet.
B．He aims at spreading Chinese culture.
C．He is well known for his carpentry skills on the Internet.
D．He has made a lot of fortune on the Internet.
（2）What can we infer about Grandpa Amu's words in Paragraph 2？ ____
A．Outstanding skills lie in diligent work.
B．Success depends on passion.
C．Happiness comes from interest.
D．Theory is from practice.
（3）What is the unique feature of Grandpa Amu's craft works？ ____
A．The apple shape.
B．The folding stool.
C．No nails or glue.
D．The wooden material.
（4）What probably made Grandpa Amu work as a carpenter？ ____
A．The support of his family.
B．His interest in woodworking.
C．His grandson's requirement .
D．His wishes to pass on the traditional crafts.