People who enjoy a dream-filled sleep are better at recalling information and making links between facts when waking. But recharging with a shallow (小睡) offers no such mental improvement, the research suggests. The results of the study added to the growing body of evidence that Rapid Eye Movement (REM) sleep is very important to the brain’s ability to form strong memories.
An average night's rest includes four or five spells of REM sleep, but these bursts tend to be lengthier towards the end of the night. This means adults getting less than the recommended seven to eight hours a night -- and therefore inadequate REM sleep -- may be damaging their mind's ability to memorize: Although REM sleep is not classified as a type of deep sleep, it is only reached after the brain has passed through deep sleep stages.
In the recent study, participants were shown groups of three words and asked to find another word that can be associated with all three words. They were tested once in the morning and then given the same task again in the afternoon. In between, some were allowed a nap with REM sleep, some a nap without REM sleep, while the others had a quiet rest period. The quiet rest and non-REM sleep groups didn't improve, but the REM sleep group improved on their morning performance by an average of almost 40 per cent. Dr Sara Mednick, a sleep researcher at the University of California who led the study, believes the formation of connections between previously unassociated information in the brain occurs during REM sleep.
It is believed that sleep acts as a sort of mental filing system, enabling the brain to sort relevant information from useless information. This process may take place as memories are removed hem one art of the brain to others.
| Title |
REM Sleep |
| The result of the study |
Rapid Eye Movement sleep is of great importance to the brain's ability to |
| The of the study |
◆ associated with all three words. ◆The same task was given to participants ◆ The quiet rest and non-REM sleep groups showed no ◆ The REM sleep group almost 40 per cent. |
| Dr Sara Mednick's |
Connections between previous unassociated information in the brain are |
| Conclusion |
Sleep acts as a sort of mental filing system, enabling the brain to abandon useless information and keep the information. |
第二节语法填空 (共10小题，每小题1.5分，满分15分)
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为31～40的相应位置上。
Child labor has been a problem for many years. Over a hundred years ago, Charles Dickens shocked many of his readers when he described the conditions ___31___ which young children worked in British factories. The conditions Dickens described continue, almost unchanged today, in many parts of the world. The only difference is ___32___ today’s employment of children is confined to small industries and family businesses, such as hotels, restaurants and ___33___ (particular) farms, rather than to large factories. The children not only receive nothing or very ___34___ for their long hours of work, but also they ___35___ (prevent) from attending school. Therefore, when they become older they are ___36___ (able) to do any other kind of work.
The solution ___37___ the problem of child labour is clearly better laws to protect young children greater supervision (监督) of industry and heavier fines for ___38___ who break the laws. Only in this way ___39___ young boys and girls be allowed to enjoy the most valuable time of ___40___ lives --- childhood.
第二节：语法填空(共10小题；每小题1.5分，满分15分)
One of the major holiday shopping days is the day after Thanksgiving. It is frequently referred to 31 Black Friday. The use of the word “black” relates to the business accountants. Storekeepers used to record profits in black ink and losses in red ink. So 32 (be) “in the black” on the Friday after Thanksgiving means a good thing, a return to profit.
Black Friday is the big day for many retailers, and it presents the shopper an opportunity 33 (get) all of one’s holiday shopping done at once among amazing sale prices. On that day, most retailers 34 (open) very early and usually provide massive and 35 (attract) discounts on their product, 36 a great number of holiday shoppers will get an early start in the morning to begin Christmas shopping.
Black Friday 37 means that people face crowded stores, 38 is the other idea of a “Black Friday”, 39 day they do not like. It used to be 40 (busy) shopping day of a year. Many people avoid this shopping day altogether because of the stress involved in fighting the crowds. In recent years the Saturday before Christmas has seen the biggest shopping crowds.
第二节语法填空 (共10小题，每小题1.5分，满分15分)
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为31～40的相应位置上。
At the age of 17, Swedish Alfred Nobel spoke five languages fluently. Nobel became an 31 (invent）and businessman, and at the time of his death on December 10, 1896, he had 355 patents worldwide —— 32 of them was the patent on dynamite(炸药). Furthermore, he had started 87 companies all over the world. According to 33 will, Alfred Nobel's enormous fortune was to be used 34 (establish) prizes to award those 35 had done their best to benefit mankind in the fields of physics, chemistry, medicine, literature and peace. The first Nobel Prizes were awarded in 1901, five years 36Nobel died. In 1969, another prize was added "The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel".
The Nobel Laureates(获得者) 37 ( announce) at the beginning of October each year. A couple of months later, on December 10, 38 anniversary of Alfred Nobel's death, they receive their prizes from the Swedish King —— a Nobel diploma, a medal, and 10 million Swedish crowns per prize. All Nobel Prizes are awarded in Stockholm, Sweden, 39 for the Nobel Peace Prize, which is awarded in Oslo, Norway. When Alfred Nobel was alive, Norway and Sweden were united under one monarch(君主), 40 1905 when Norway became an independent kingdom with its own king.
第二节语法填空（共10小题；每小题1.5分，满分15分）
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为31--40的相应位置上。
When very small dinosaur bones were found in a Germany mine people thought they were from baby dinosaurs. __31__ scientist Martin Sander's work shows that they were probably fully __32__ (grow) and belong to the smallest giant dinosaur species ever found.
Growth marks on dinosaur bones are similar __33__ growth rings on trees. The rings are far apart while the animal is young and growing quickly. __34__ get closer as growth slows. "It is __35__ (exact) these tight ring marks that we found in the fossil (化石) bones," says Sander. So the fossils must have been from adult animals.
__36__ was this German dinosaur so much smaller than other giant dinosaurs, which grew up to 45 metres long and weighed as much as a thousand humans?
150 million years ago, most of Germany was underwater. Scientists think that __37__ water levels rose, there was less and less land and food available. The dinosaur __38__ (force) to adapt and evolved into a smaller animal __39__ (need) less space and food.
Since 1998, scientists have dug up more than 1,000 dinosaur fossils in the mine. It is one of the few places in the world __40__ the bones and footprints of dinosaurs have been found together.
第二节语法填空 (共10小题；每小题1.5分，满分15分)
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为31～40的相应位置上。
It was a cold and cloudy afternoon. I was on the bus with my children, aged four and two, heading home when it started to rain. I realized this would mean a wet walk home 31 the bus stop.
Home was only two blocks away 32 it was not a pleasant walk with one small boy fast asleep in the pram (手推婴儿车), the other one in a raincoat and no umbrella for myself. A pick-up truck passed us on the road and, a few minutes later, I saw it 33 (pull) back and the driver looking directly at us.
A young man put the window down. “Hey, here’s an umbrella for you --- please take it.” He called out.
I stood there 34 (astonish), barely believing that the man, 35 existence was unknown to me only moments ago, could be so 36 (thought). “Come on, give this to your mummy,” he said to my older son. I gratefully accepted the offer, 37 (thank) him and watched the truck disappear down the road.
This man might have needed the umbrella for 38 later during the day but preferred to give it to me. It was a lesson to me 39 it’s possible to give without expecting anything 40 return.