15. Children brains cannot develop B. they lack protein(蛋白质).

4. 无( )

A. 　 Because a growing amount of American companies are doing business with China.

B. 　 Because NY is one of the largest and most exciting cities in the world for travelers.

C. 　 Because arriving Chinese are to become the largest immigrant group in NY.

D. 　 Because the NY firemen speak ittl or no English.

10. 无( )

A. 　 He was honest with the woman.

B. 　 He lied to the woman.

C. 　 He went to Brian＇s.

D. 　 He stayed at home.

2. I will never know what was on his mind at the time, nor will ( ).

A. 　 anyone

B. 　 anyone else

C. 　 no one

D. 　 no one else

1、The maker movement is now( ) in China and makerspaces like Xinchejian and Seeed Studio are open to the public. A maker is someone who builds, creates or hacks ( ).They are different from the traditional inventors who tinkered in garages. Makers often use ( ) to design objects to be produced by ( ) like 3-D printers. And they often cooperate and( )their ideas online. The Chinese government is supporting this movement by building more government-supported innovation houses and organizing ( ) Andit is hoped that this movement can help Chinese industry move toa( ) Although some ( )see China＇s maker movement as ( ) copycat
goods, Mr. Pan Hao, founder of Seeed Studio,advises patience.

10. 无( )

A. 　 They do not cooperate with their teacher.

B. 　They like to play games with language.

C. 　 They like to experiment on bad students.

D. 　 They are not afraid to make mistakes.

2. 无( )

A. 　They put more pictures of heron Facebook.

B. 　They ask her family to help find her.

C. 　 They file an escape charge on her.

D. 　 They use her post to locate her.

21. Driving a car is not as difficult as you imagine, if you ( ) the rules.

A. 　 depend on

B. 　 believe in

C. 　 turn to

D. 　 stick to

8. The electric car is an inspiring invention. Currently,the government is attaching more and more importance to the development of electric cars. One of the main reasons lies in the fact that electric cars can save nonrenewable(不可再生的) gasoline, which will somewhat lessen the pressure of the energy crisis and contribute to environmental protection. Given that consumers are still in favor of cars powered by gasoline,the government should take measures to promote the development and use of electric cars. In addition,the publicity and education of environmental protection should be strengthened to enhance people＇s awareness of environmental protection.

17无( )

A. 　When commercial airlines began to develop faster;

B. 　 When investigators found the weakness of rectangular windows.

C. 　 When the speed of commercial airplanes greatly increased.

D. 　 When two commercial airplanes crashed within months.

15. 无( )

A. 　 We build a meaningful life.

B. 　 We have a loving and caring person.

C. 　 We develop long-term love relationships.

D. 　We make a lot of money to spend.