Ears are for hearing — everyone knows that. But for a creature called the Cuvier’s beaked whale, hearing starts in the throat (喉咙), a new study found.
The observation might help explain how all whales hear. The work might also help scientists understand how animals ar
e affected by underwater sonar (声呐). This sonar, used by some ships, sends out sound waves to locate underwater objects.
The Cuvier’s beaked whale is a so-called toothed whale. Toothed whales dive deep into the ocean in search of food. As the whales hunt, they produce sounds that reach objects and then return to the whales. This allows the animals to “see” the shape, size, and location of objects, even when they’re 1,000 meters under the sea, where it is totally dark.
To better understand how the whale hears, researchers from San Diego State University in California took X rays of two Cuvier’s beaked whales. The whales had died and washed up on the beach.
Ted Cranford and his colleagues used the images to make a computer model of a Cuvier’s beaked whale’s head. Then, they modeled the process of sound traveling through the head.
The researchers knew that some sounds get to the ears of a toothed whale through a structure (构造) called “the window for sound”. Found on the lower jaw, this structure is very thin on the outside and has a large pad (垫) of fat on the inside.
When the researchers used their computer model to work out how sound waves travel in the whale’s head, they were surprised to find that sounds coming from right in front of the whale actually travel under the animal’s jaw. From there, sound waves move through the throat, into a hole in the back of the jaw, and finally to the pad of fat near the animal’s ears.
69. Toothed whales look for food under the sea by ______.
| A．watching the shape and size of their objects | B．diving deep into the sea |
| C．sending and receiving sounds | D．making lots of noises |
70. Researchers took X rays of two Cuvier’s beaked whales in order to ______.
| A．find out why they had died and washed up on the beach |
| B．make a computer model of a Cuvier’s beaked whale’s head |
| C．make sure that sound travels through the head |
| D．know more about the way the whale hears |
71. Which of the following describes the way taken by sound waves through a Cuvier’s beaked whale?
| A．A hole in the back of the jaw → the ears → the jaw → the throat. |
| B． The jaw → the throat → a hole in the back of the jaw → the ears. |
| C． The throat → the jaw → the ears → a hole in the back of the jaw. |
| D．The ears → the throat → a hole in the back of the jaw → the jaw. |
72. Which of the following is TRUE according to this passage?
| A．The throat is important to the Cuvier’s beaked whale’s hearing. |
| B．Ships send out sound waves like a Cuvier’s beaked whale. |
| C．The ears are actually useless to the Cuvier’s beaked whale. |
| D．The researchers haven’t found how the whales hear. |
Studying Abroad
Nowadays, studying abroad gains popularity in China. Many rich parents would rather send their children abroad to receive education than let them be educated in China.
As every coin has two sides, studying abroad is not an exception. There are advantages for people to attend school abroad. In the first place, he can use the foreign language in his daily life so that his ability in the second language may be greatly improved, as it is obvious that there is no better chance to improve second-language than living in the country where it is spoken. While studying in a foreign country, he will most likely meet many others from overseas and it is possible to make friends from all over the world. This is not only exciting on the social level, but could lead to important overseas contacts in his career as well. He can get familiar with the latest knowledge in science and make use of the first-rate facilities (设备) available. In this way, there is every chance that he is able to widen his horizon (眼界) and broaden his mind.
Of course, attending schools abroad may bring about a series of problems. The most serious problem is language barrier (障碍). Most of the students who go abroad don’t have enough skills in the language spoken there. As a result, on arriving there, they will find it difficult to understand what the teachers say. Besides, for lack of knowledge of the customs of the local people, they may constantly run into trouble in dealing with various situations.
Therefore, given an opportunity to attend a school abroad, one must consider both sides of the factors carefully before making up his mind.
| Title: Studying Abroad |
|
| Phenomenon |
Sending children abroad to receive education is |
Advantages |
● Children have the ● They can make friends with other students from ● They can |
| ● Language barrier is the number one problem. Because students are not ● It is not easy for them to deal with cross-culture communication |
|
| Conclusion |
Both sides of the factors should be |
Theodor Seuss Geisel was born in Springfield, Massachusetts in 1904. He was famous because of the books he wrote for children. They combine funny words, pictures, and social opinion.
Dr Seuss wrote his first book for children in 1937. It is called And to Think I Saw It on Mulberry Street. A number of publishers refused to publish it. They said it was too different , and it’s not worth publishing. A friend finally published it. Soon other successful books followed. Over the years, he wrote more than forty children’s books. They were fun to read. Yet his books sometimes dealt with serious subjects.
By the middle 1940s, Dr Seuss had become one of the best-loved and most successful writers of children’s books. He had a strong desire to help children. In 1954, Life magazine published a report about school children who could not read. The report said many children’s books weren’t interesting. Dr Seuss decided to write books that were interesting and easy to read.
In 1957, Dr Seuss wrote The Cat in the Hat. He used less than 225 words to write the book. This was about the number of words a six-year-old should be able to read.
The story is about a cat who tries to entertain two children on a rainy day while their mother is away from home. The cat is not like normal cats. It talks. The book was an immediate success. It was an interesting story and was easy to read. Children loved it. Their parents loved it, too. Today many adults say it is still one of the stories they like best.What’s the best title for this passage?
| A．Some of Dr Seuss’ books for children. |
| B．What are Dr Seuss’s books mainly about? |
| C．Dr Seuss — a famous writer of children’s books. |
| D．Why are Dr Seuss’ books different? |
What do we know about Dr Seuss’s first book for children?
| A．It was Dr Seuss’ worst book. |
| B．It dealt with a very serious subject. |
| C．Neither children nor adults like it. |
| D．Many publishers didn’t take it seriously at first. |
How old was Dr Seuss when he wrote his first book ?
| A．30 | B．31 | C．32 | D．33 |
How did Dr Seuss help children according to Paragraph 3?
| A．By asking others to help them in magazines. |
| B．By writing interesting and simple books. |
| C．By changing his old books into simpler ones. |
| D．By giving them books for free. |
Adults most probably think that Dr Seuss’ The Cat in the Hat is _________
| A．interesting | B．serious | C．difficult | D．boring |
Cancer researchers urged people on Wednesday to take more vitamin D to lower risk of cancer， saying studies showed a clear link. "Our suggestion is for people to increase their intake， through diet or a vitamin supplement，" Dr. Cedric Garland said in a telephone interview.
Garland's research team reviewed 63 studies， including several large long-term ones， on the relationship between vitamin D and certain types of cancer worldwide between 1966 and 2004. "There's nothing that has this ability to prevent cancer，" he said， urging governments and public health officials to do more to fortify foods with vitamin D.Garland is part of a University of California at San Diego Moores Cancer Center team that published its findings this week online in the American Journal of Public Health. Vitamin D is found in milk， as well as in some fortified orange juice， yogurt and cheeses， usually at around 100 international units （IU） a serving. People might want to consider a vitamin supplement to raise their intake to 1000 IUs per day， Garland said， adding that it was well within the safety guidelines established by the National Academy of Sciences.
The authors said that taking more vitamin D could be especially important for people living in northern areas， which receive less vitamin D from sunshine.
African Americans， who don't produce as much of the vitamin because of their skin colour， could also benefit significantly from a higher intake， the authors said. According to the passage， people are advised to take more Vitamin D because_________.
| A．it is nutritious |
| B．it can‘t harm people’s health |
| C．it is not taken enough every day |
| D．it can lower cancer risk |
Which of the following can not help people get more Vitamin D？
| A．Have more meat | B．Have some sunshine |
| C．Have a vitamin supplement | D．Have more fortified cheese |
Who can Garland probably be？
| A．A scientist | B．A health researcher |
| C．A doctor | D．A public health official |
Which of the following food can lower people‘s chance of getting cancer？
| A．Fortified orange juice | B．Milk |
| C．Fortified yogurt | D．All of the above |
People from which area should take more Vitamin D according to the passage？
| A．Asian people | B．American people |
| C．European people | D．African people |
The most important holiday in spring， especially for Christians （基督徒）， is Easter. This Christian holiday is not on the same date every year， but it‘s always on a Sunday. It can be any Sunday between March 22 and April 25. Many people celebrate Easter by buying new clothes. Children celebrate by hunting for colored eggs that their parents have hidden around the house. People also give Easter baskets filled with candy and other goodies to one another to celebrate the day.
But the holiday is more than new clothes and good things to eat. On Easter， many people go to church to celebrate Jesus‘ resurrection （复活） from the dead.
Most people color them. Some people hide them. Others just eat them. But no matter what one does with Easter eggs， they are an important Easter tradition throughout the Western world.
People from many different cultures celebrate Easter. In both America and Belgium， children look for Easter eggs hidden on lawns and in bushes. In America， children believe the eggs are hidden by the Easter bunny （复活节兔子）。 But in Belgium， the hidden eggs are supposed to have fallen from church bells. In Bulgaria， red Easter eggs are lucky in churches； Bulgarian families also hit these Easter eggs together to see whose is the strongest. The winner looks forward to good fortune that year. Still dozens of other Easter traditions exist. In parts of Austria， for example， children sing from door to door and are rewarded with colorful eggs.Easter comes _______.
| A．on Sunday on April 25 |
| B．on a Sunday between March 22 and April 25 |
| C．on the same date every year |
| D．on Sunday on March 22 |
To celebrate Easter， people ___________.
| A．go shopping， hide colored eggs and children hunt for them |
| B．give Easter baskets filled candy and goodies to one another |
| C．buy new clothes， hide colored eggs and children look for them around the house |
| D．both B and C |
For Christians the more important thing to do on Easter is________.
| A．going to church to celebrate Jesus‘ resurrection |
| B．buying new clothes |
| C．eating delicious food and paint color eggs |
| D．exchange beautiful gifts each other |
People from different cultures have different ideas about Easter egg， _________.
| A．In both American and Belgium， children hunt for Easter eggs hidden in rooms and in bushes |
| B．In Belgium， the hidden eggs are thought to have fallen from doorbells |
| C．In America， the hidden eggs are supposed to have fallen from doorbells |
| D．In American， children believe the eggs are hidden by the Easter bunny |
In some places of Austria，children sing from door to door for_______.
| A．Easter bunny | B．Blesses |
| C．candy and goodie | D．Easter eggs |
A young woman was driving through the lonely countryside. It was dark and raining. Suddenly she saw an old woman by the side of the road, holding her hand out as if she wanted a lift.
“I can’t leave her out in this weather,” the woman said to herself, so she stopped the car and opened the door.
“Do you want a lift?” she asked. The old woman nodded and climbed into the car. After a while, she said to the old woman, “Have you been waiting for a long time?” The old woman shook her head. “Strange,” thought the young woman. She tried again. “Bad weather for the time of year,” she said. The old woman nodded. No matter what she said, the hitchhiker (搭便车的人) gave no answer except for a nod of the head or a shrug.
Then the young woman noticed the hitchhiker’s hands which were large and hairy.Suddenly she realized that the hitchhiker was actually a man! She stopped the car. “I can’t see out of the rear screen,” she said. “Would you mind clearing it for me?”
The hitchhiker nodded and opened the door. As soon as the hitchhiker was out of the car, the terrified young woman raced off.
When she got to the next village she pulled up. She noticed that the hitchhiker had left his handbag behind. She picked it up and opened it. She gave a gasp — inside the bag was a gun.The young woman stopped the car because ______.
| A．“the old woman” asked her to |
| B．she knew “the old woman” |
| C．she knocked “the old woman” down |
| D．she wanted to help “the old woman” out in the bad weather |
What’s the weather like that day ?
| A．Sunny | B．Cloudy | C．Rainy | D．Windy |
The young woman asked the hitchhiker to clear the rear screen because _______.
| A．this was the way she thought of to get rid of him |
| B．she couldn’t see out of the rear screen |
| C．the hitchhiker was very helpful |
| D．the rear screen was covered with dirt |
The hitchhiker left the bag with a gun in it behind because _______.
| A．he wanted to give the young woman a warning |
| B．he hadn’t expected that the young woman would leave him behind in the rain |
| C．it was his present for the young woman |
| D．he wanted to kill the young woman with the gun |
What might the man be?
| A．a teacher | B．a soldier | C．a robber | D．an actor |