题目内容

Children’s brains cannot develop properly _________ they lack protein.

A. because B. since

C. when D. unless

 

C

【解析】

试题分析:考查连词辨析。在本题中的when引导的是一个条件状语从句,相当于if。Because因为,since自从,因为,unless除非。句意:如果孩子缺少蛋白质,他们的大脑就不能适当的发展。故C正确。

考点:考查连词辨析

 

练习册系列答案
相关题目

完形填空(共20小题, 每小题1分, 满分20分)

Bethany Hamilton, born on February 8, 1990, learned to surf at 7 and began her career as a surfer when she entered her first competition at age 11. ____ age 13, she was an excellent surfer and well-respected in the ____ world. Her lifelong ____ of becoming a professional surfer was ____ on October 31, 2003, as she was ____ by a 14-foot tiger shark while surfing off Kauai’s North Shore. She lost her left arm ____ that did not destroy her ____. And it just made her stronger.

“I know I have ____ important to say. Something that people need to hear—but sometimes they get ____ caught up in the story part, that they miss the meaning,” says Bethany Hamilton.

Bethany has chosen to use her ____ to become an inspiration and help others to overcome adversity(厄运), no matter how ____. She says, “People I don’t even know ____ me. I guess they ____ me as a symbol of courage and inspiration. One thing hasn’t changed—and that’s how I feel when I’m ____ a wave. It’s like, here I am. I’m ____ here. It’s still me and my board—in God's ocean!”

Bethany was presented with a special courage ____at the 2004 Teen Choice Awards and Best Comeback Awards in 2004 ESPY(卓越体育表现奖). Bethany ____ to compete in the most challenging waves in the world and amaze everyone by achieving the ____. She dominated(支配) the 2005 National Scholastic Surfing Association Nationals Championships, taking first ____ in the Explorer Women’s division.

Her story continues to be told, with Bethany continuingly ____ to be the best at whatever God calls her to do.

1.A. For B. Till C. By D. To

2.A. sports B. sailing C. swimming D. surfing

3.A. dream B. task C. hope D. interest

4.A. damaged B. ruined C. interrupted D. destroyed

5.A. killed B. attacked C. shocked D. bitten

6.A. for B. and C. but D. so

7.A. life B. courage C. ambition D. profession

8.A. something B. everything C. nothing D. anything

9.A. very B. too C. so D. quite

10.A. experience B. accident C. suffering D. misfortune

11.A. large B. much C. great D. serious

12.A. come up with B. live up to C. put up with D. come up to

13.A. look B. think C. refer D. see

14.A. surfing B. riding C. speeding D. sliding

15.A. even B. still C. also D. already

16.A. present B. reward C. prize D. award

17.A. continues B. begins C. hopes D. tries

18.A. unusual B. unfortunate C. unimaginable D. unique

19.A. lead B. place C. step D. action

20.A. struggling B. determining C. supposing D. winning

 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网