with small－series production such as hearing aids.

　　1．What is mainly talked about in the text?

　　 A．The development of 3D printing.

　　 B．A 3D printing show in Shanghai.

　　 C．Varieties of items printed in 3D.

　　 D．The company Materialise NV.

　　解析：主旨大意题。本文主要介绍了在上海举行的一个3D印刷展，故选B项。

　　答案：B

　　2．According to Khoshnevis what is the main difficulty in printing buildings?

　　 A．Time.　　　　　　　B．Technique.

　　 C．Space. D．Material.

　　解析：细节理解题。根据第三段第一句话可知，D项符合文意。

　　答案：D

　　3．The example of 3D printed hearing aids was mentioned to show that ________.

　　 A．these items used to be impossible to make

　　 B．3D printing has a large market share

　　 C．3D hearing aids help people hear better

　　 D．people need different－sized hearing aids

　　解析：细节理解题。根据第五段第一句话可知，答案为A项。

　　答案：A

　　4．According to the text 3D printing is suitable for ________.

　　 A．mass production

　　 B．making small items

　　 C．small－series production

　　 D．reducing production costs

　　解析：细节理解题。根据倒数第二段可知，C项符合文意。

　　答案：C

　　5．Which of the following is NOT true according to the text?

　　 A．The printed house is on show in Shanghai.

　　 B．The exhibition will last about half a year.

　　 C．3D printing is regarded as new in Asia.

　　 D．A production line has its own disadvantages.

　　解析：正误判断题。根据文章第三段最后一句话即可推知，A项与文意不符。

　　答案：A

　　Ⅶ.七选五阅读

　　Here are a few tips to help you the workaholic re－focus and get the best out of life.

__1__ Make it a point to get at least eight hours of sleep and plenty of rest. Don't believe that you can always "catch some sleep or rest later". Your body cannot make up for lost sleep or rest time because it is not psychologically possible.