第（55）题选

查看答案及解析进入在线模考

参考答案

答案解析

空格前面为连词and，后面为名词短语，通过对句子结构的分析，空格处缺少的成分是与shows构成并列谓语的动词。文章结尾处对实验结果进行总结，这项研究既证实了手机能够改变大脑的活动，也为进一步的科学研究提供了一个全新的思路。因此，空格处应填入表示“提供”的动词，并且需要与后面的介词for进行搭配，由此可以断定provides为本题答案，provides…for…意为“为…提供…”。根据句子的主语和时态，空格处需要填入的是动词第三人称单数形式，因此动词原形derive，maintain，par-ticipate以及过去分词fixed，switched可以直接排除，contributes“促成，造成”和expresses“表达”均不符合句意，也可以排除。

你可能感兴趣的试题

1 Suppose that you have been a regular of a hotel for many years. But during the last 2 days, the air-conditioner didn´ t work and nobody came to clean your room. Write a letter of com-plaint to the hotel manager. Your letter should include:
1 ) a description of the situation
2) complaint about the situation
3) your request
You should write about 100 words. Do not sign your own name at the end of your letter, use "Wang Lin" instead. You don´ t need to write the address.

查看解析在线模考

2 The Princess of Cambridge has finally been revealed to the world as Charlotte Elizabeth Dian-a-in a touching nod to her grandfather, her grandmother and her great-grandmother.
The name has long tradition which can be traced back to the royal background. Charlotte, de-dyed from French name, pays tribute to her grandfather, prince of Wales. And Charlotte is also Kate´s sister, Pippa Middleton´ s middle name.
Kensington Palace revealed the royal baby´ s full name yesterday after days of speculation and close friends of Princess Diana immediately said the choice means the spirit of Prince William´ s be-loved mother ´lives on´.
William was, however, dear that his baby girl should not have Diana as a first name. "It would have been a millstone around her neck," said one of the princess´ s long-time friends.
Within minutes of the name being announced this afternoon, Diana´ s closest friend Rosa Monekton said: "Diana´ s spirit lives on in her sons, and now her name lives on in her granddaugh-ter ´ Charlotte Elizabeth Diana´. "Diana was the godmother of Mrs. Monckton´ s daughter Domi-nica.
The British citizens show their satisfaction with this name via Internet. They said it is the per-feet name for their lovely princess.

查看解析在线模考

3 {MP3:http://wximg.233.com/attached/media/20180301/20180301161939_4305.mp3}
听录音，回答题
Which flight will the man take?

A．Air China Flight 9850n the 26m．

B．Air China Flight 9850n the 27th．

C．Air China Flight 9850il the 28th．

D．Air China Flight 9850n the 25th．

查看解析在线模考