The fact she seemed to develop normally was very encouraging.A．where B．of which C．what D．that 题目和参考答案——青夏教育精英家教网—

题目内容

The fact ________ she seemed to develop normally was very encouraging.

A．where B．of which C．what D．that

【解析】

试题分析：句意：她似乎发展很正常这个事实很令人鼓舞。that引导同位语从句。说明fact的内容，所以选D。

考点: 考查同位语从句

练习册系列答案

中考分类必备全国中考真题分类汇编系列答案

相关题目

______ at the top of the Oriental Tower, people below will look very small.

A.Stand B. Standing

C. To stand D. If you stand

Everyone has those nights-you lie in your bed for hours, tossing and turning, totally unable to fall asleep. You wish you could just turn your brain off as if it were a light. That would make things much easier, wouldn’t it?

Now it looks like you are one step closer to this wild dream of yours-scientists from Oxford University, UK have just discovered the “switch” that tells the brain to go to sleep, reported Forbes.

To understand the study, you first need to know that there are two mechanisms(机能) that regulate sleep. There’s one that we’re already familiar with —our body clock, which works in a 24-hour cycle based on the light changes throughout the day.

The other one is what scientists call the sleep “homeostat(动态平衡系统)”. This mechanism has nothing to do with daylight. Instead, it keeps track of the brain’s waking hours and urges it to rest if it has been awake for a long time. “It is similar to the thermostat(自动调温器) in your home. A thermostat measures temperature and switches on the heating if it’s too cold,” Professor Gero Miesenbock, who led the study, told The Telegraph.

Our bodies use both of the mechanisms to regulate sleep. “The body clock says it’s the right time, and the sleep thermostat has built up pressure during a long waking day,” explained Miesenbock.

There is no way that scientists can trick the body clock. But with the sleep homeostat, there might be something they can do.

The researchers found that the sleep homeostat works by activating a specific group of nerve cells, or neurons, in the brain. They tested their theory on fruit flies by removing the neurons from the insects’ brains. And as expected, they found that the flies without the homeostat neurons did not keep a regular sleep pattern anymore.

Now that scientists have pinpointed the exact place in the brain— or, the “switch”—that regulates sleep, they can begin investigating how to activate these cells at any given time so that people can be sent to sleep instantly.

More importantly, figuring out how sleep mechanisms work may also help us to one day unravel one of the oldest mysteries of all: why do we need to sleep in the first place?

1.What is the article mainly about?

A. A new way to treat sleep disorders.

B. The discovery of the sleep “homeostat”

C. Advice on what to do when you fail to fall asleep.

D. A comparison of the two mechanisms that regulate sleep.

2.How does the author explain the function of the sleep homeostat?

A. Through examples.

B. With comparisons.

C. Through cause and effect analysis.

D. By presenting research findings.

3.What can we conclude from the article?

A. Generally, the sleep homeostat has less effect on people during the day than at night.

B. There is little scientists can do to affect the way the sleep homeostat works.

C. What makes us go to sleep at night is probably a combination of the two mechanisms.

D. The more homeostat neurons there are in one’s brain, the more easily one can fall asleep.

4.The underlined word “unravel” in the last paragraph is closest in meaning to .

A. put up with B. figure out

C. keep track of D. take notice of

downloading of large numbers of apps is one of the most risky behaviors someone with a smartphone can engage in.

A. Cautious B. Public C. Random D. General

April Fools’ Day, not officially considered a holiday, is most definitely a notable day that is celebrated in many countries on April 1. The thing that is so special about April 1 is that it is the day for playing tricks and practical jokes on others. The aim of these jokes is to bring embarrassment to others.

Superstitions(迷信)have it that the practical jokes are meant to be played before noon, and that those that are performed afterwards will bring bad luck. This limitation is widely losing its value due to the fact that many major hoaxes throughout history appear after noon. Another superstition is that anyone who fails to respond properly to the jokes played on them is also said to be easy to suffer from bad luck.

Some people think that being fooled by a pretty girl will be accompanied by marriage, or at least a friendship with her. That sounds like a good deal if she is truly pretty. Some people believe that being married on April Fools’ Day is not a good idea for a man, and that forever in the future he will be ruled by his wife.

The origin of April Fools’ day is not clearly known, but it is generally accepted to have come about as a result of the changes in the calendar system. The New Year celebrations used to begin on 25 March and last for a week, ending on 1 April. In 1582, Charles IX, King of France brought in the new Gregorian calendar, in which the new year began on 1 January. Unfortunately, some people did not hear about the change, and many others simply refused to break the tradition.

1.April Fools’ Day is different from other festivals probably because .

A. it is not official holiday

B. jokes can be played on this day

C. people are relaxed on this day

D. it is an important day

2.If jokes are played on you by a beautiful girl you’ll probably .

A. dislike her B. make much money

C. make many friends D. get married to her soon

3.A man would rather not get married on April probably because .

A. he loves his wife very much

B. he is eager for a bright future

C. he doesn’t want to obey his wife

D. he doesn’t like playing jokes

4.Which of the following would be the best title for this passage?

A. April Fools’ Day B. The New Year

C. The Superstitions D. The New Gregorian Calendar

—It's reported that there is ________ big breakthrough in the cancer treatment.

—If only my wife could be brought back to ________ life.

A．a；/ B．/；a

C．the；the D．a；the

He didn't________ what I said because his mind was on something else.

A．hold on B．catch on

C．take in D．get over

Mr. Smith is always on time for everything. How ____ it be that he was late for the important meeting?

A. should B. can

C. may D. must

According to the newest reports, personal _______ of guns in the USA causes a lot of trouble.

A. matter B. problem

C. possession D. wealth

试题分类