题目内容
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We were surprised because it was the first time they us ______ to lunch.
A．invite
B．invited
C．have invited
D．had invited
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更多“We were surprised because it w…”相关的问题
A.dispatched
B.has been dispatched
C.will dispatch
D.was dispatched
They flew to London and arrived at their hotel late one evening. They expected that they would have to go to bed hungry, because in that small inn in New Jersey no meals were served after seven. They were therefore surprised when the man who received them in the hall asked whether they would ask dinner there that night.
"Are you still serving dinner？" asked Mr. Smith.
"Yes, certainly, sir," answered the man. "We serve it until half past nine."
"What are the times of meals then？" asked Mr. Smith.
"Well, Sir," answered the man, "We serve breakfast from seven to half past eleven in the morning, lunch from twelve to three in the afternoon, tea from four to five and dinner, from six to half past nine."
"But that hardly leaves any time for us to see the sights of London." Said Mrs. Smith.
Mr. and Mrs. Smith ______ in the past.
A．had often stayed in a big hotel in New Jersey
B．had traveled to many places
C．had often stayed in a small inn
D．had made a lot of money
The villagers were surprised to see the（) of an aeroplane near the lake.
A.remains
B.remain
C. thing
D.matter
A．once
B．then
C．while
D．if
When the people saw the land,______
A．only passengers were glad
B．the sailors had to swim ashore
C．they were surprised at the news that some ships never arrived
D．all of them were excited
A.which
B.with which
C.that
D.how
The study adds to a growing body of evidence that there' “an intimate relationship between the amount of sleep we get and our ability to maintain a good, healthy body weight,” says sleep expert Helene Emsellem, director of the Center for Sleep and Wake Disorders in Chevy Chase, Maryland. But Americans don't seem to be getting the message that we need seven to nine hours par night. More than 1 in 5 of us, according to a report from the Centers for Disease Control and Prevention, is getting six or fewer hours of sleep per night, on average.
So how did researchers study fat cells in the Annals paper？ Matthew Brady of the University of Chicago and a group of colleagues selected and persuaded seven volunteers to take part in the research project. They were all young, thin and healthy and agreed to sleep for eight nights in a sleep lab. “For four nights they were allowed to stay in bed for 8.5 hours a night,” says Brady. Then, a month later, they came back for four additional nights——but this time they were allowed just 4.5 hours of sleep per night. And after each visit, researchers got a sample of their fat. Brady explains that the fat cells responded significantly to the loss of sleep. “I was very surprised to be honest,” he says.
Bad things can happen when fat cells become less responsive to insulin. “Fat cells are actually your friend,” he says. “They're there to store lipids (血脂).” When lipids stay inside the cells, your body can utilize the fat when you're exercising or sleeping or going about your day. “However, when fat cells stare to become insulin resistant, the lipids star to leach out of the fat cells and rise in the bloodstream,” Brady says.
1. According to the passage, lack of sleep for a long while can probably lead to all of the following EXCEPT {A; B; C}.
A. heart disease
B. weight gain
C. diabetes
2. The main idea of the third paragraph is {A; B; C}.
A. how to write a medical research paper
B. how to avoid sleep loss
C. how the research was conducted
3. What does the “leach” in the last paragraph probably mean？{A; B; C}
A. Leap.
B. Lead.
C. Leak.
4. Which of the following is NOT TRUE according to the passage？{A; B; C}
A. We will be in trouble if our fat cells become less responsive to insulin.
B. More and more studies are done to study the link between sleep and weight.
C. More than 20% of Americans are not getting enough sleep.
5. Which of the following is an appropriate title for this passage？{A; B; C}
A. Poor Sleep May Lead to Too Much Stored Fat and Disease
B. Sleep Experts Had Exciting Findings in a Fat Study
C. Americans Should Have More Than Six Hours of Sleep
Scientists, for several years, have been studying how noise affects people and animals. They are surprised by what they have learned. Peace and quiet are becoming harder to find. Noise pollution is a threat that should be looked at carefully.
There is a saying that it is so noisy that you can't hear yourself think. Doctors who study noise believe that we must sometimes hear ourselves think. If we don't, we may have headaches, other aches and pains, or even worse mental problems.
Noise adds more tension to a society that already faces enough stress.
But noise is not a new problem. In ancient Rome, people complained so much about noise that the government stopped chariots(战车) from moving through the streets at night!
Ways of making less noise are now being tested. There are even laws controlling noise. We cannot return to the "good old days" of peace and quiet. But we can reduce noise—if we shout loudly enough about it.
Why are scientists surprised by the findings in their noise study？
A．Because the world is becoming increasingly noisy.
B．Because they have learned that noise is also is also a kind of pollution.
C．Because noise is an unwanted waste for human beings.
D．Because people knew little about noise before.
