1 . Daphne Soares, a biologist, makes an amazing discovery about alligators. The first time she got really close to an alligator (短吻鳄) was when she was helping to bold down an eight-foot American alligator. It was then that she noticed is face was covered with little black spots. This led to the discovery of the little black dots.
She started her study of the black dots. When she read the books and scientific journals, she learned that people had noticed the dots, but no one really knew what the dots were for.
To find out the secret she placed electrodes (电极) on nerves coming from some of the dots. When the nerves fired, they sent a message to the brain and created a tiny electric current. Just then she heard a small sound over a loudspeaker. She tired to see if the dots acted like eyes and temperature sensors, but nothing worked.
One day she was careless with dropping a tool into an alligator’s tank. When she put her hand in the tank to get the tool out, she made small waves in the water. When they reached the alligator’s face, she heard a noise over the speaker. She then realized that the dots must be sensitive to the changes in pressure when hit by waves of water.
After that, she is now studying blind cavefish. She is trying to learn whether they are blind from birth or lose their sight as they grow up. She is also doing more research on crocodilians (鳄目). She wants to find out how the genes of alligators with pressure sensors only on their faces differ from the genes of crocodilians that have pressure sensors all over their body.
1. Why did Daphne Soares first get close to the alligator?| A．To observe its black dots. | B．To find the secret of its dots. |
| C．To help others to hold it up. | D．To prevent it from moving. |
| A．A little noise was sent out. | B．An electric current created a message. |
| C．The nerves were on fire suddenly. | D．The nerves sensed temperature changes. |
| A．By experiment. | B．By reference. |
| C．By accident. | D．By comparison. |
| A．Cavefish lose sight as they grow up. |
| B．Daphne Soares devotes her energy to research work. |
| C．Alligator’s genes are the same as crocodilian’s. |
| D．Daphne Soares discovered a new species of alligator. |
2 . Research is done all the time and most of it goes straight by us, but sometimes we come across some results that are too interesting not to share. It can be fun to find out about new facts, but sometimes you come across things you’d rather not have known. Luckily, we’ve got some fun facts for you today! It turns out that your hand can tell you a lot about your personality. It’s really quite strange. This research mostly focuses on your fingers.
The secret lies in your ring finger and index finger（食指）. It can say a lot about what kind of man you are. Yes, this test only applies to men because the length of these fingers indicates the level of testosterone（睾酮）in men. There are three types: A, B and C.
A. The ring finger is longer than the index finger
We’re talking about handsome men here. They’re charming and can get along with everyone. Yet they are a little more aggressive and are quick to take risks. This also means that these people often make more money than their colleagues with a shorter ring finger.
B. The ring finger is shorter than the index finger
Men with these hands are very confident and can even be a little self-loving. These people have no trouble being alone often and don’t like being disturbed. When it comes to love, they do not take a risk out there a lot. They’re not the ones to make the first move.
C. The ring finger and index finger are the same lengths
Maybe this says enough already. Men with these hands are good mediators（调停者）, devoted and loving. Everything is balanced with these people. They’re calm and everything seems to run smoothly, as if it’s all organised.
1. Why does the author think the hands are strange?| A．We know nothing about them. | B．Both the hands are different. |
| C．They can let out the personality. | D．Some facts about them are fun. |
| A．The length of the fingers. | B．The existence of testosterone. |
| C．The ability to handle things. | D．The requirement of patience. |
| A．They are attractive. | B．They are confident. |
| C．They are devoted. | D．They are aggressive. |
| A．The new use of the fingers | B．The latest research into the hands |
| C．The three categories of the fingers | D．The secret of ring and index fingers |
3 . Visiting Washington, D.C. is not a waste of your time and money. There are many destinations in Washington, D.C. that you can include in your journey, which make your travel to this great city worth your time and money. Here are some notable attractions that the city can offer.
Smithsonian Institution
It is the image of 19th sandstone called Castle. This is an institution that has got more than nine museums. A one-day tour is not enough to cover it all. The best places to visit are Air and Space Museum and Museum of Natural History.
Jefferson Memorial
This place houses the 19-foot statue of America’s third president. In addition, there are some writings in the wall like Declaration of Independence and some Jefferson’s writings.
Michel Richard Citronelle
This famous chef got a restaurant at the heart of Washington, D.C. He prepares wonderful dishes to dignitaries who frequent this place. It is not only about attractive menu, but the service is professional. The multi-course is accompanied with wine. The restaurant’s wine cellar houses thousands of bottles.
Mandarin Oriental
This is a taste of Asia in the district. The hotel amenities (设施) are world class with pool and spas. The restaurant shows the city’s view on a flat screen TV and the rooms have Internet access.
The White house
It should not be missed. It is one of the most significant buildings in the city. Its architecture is grand and suits the city’s landscape. There are guided tours that you can join in.
Twins Jazz
If you want to enjoy jazz music, this is the place to be. You can hear grassroots musicians play. The food is also good.
1. What can you visit in Smithsonian Institution?| A．Castles. | B．Museums | C．Statues | D．Restaurants |
| A．Taste Asian food. | B．Cook delicious dishes. |
| C．Enjoy good food and service. | D．Swim and enjoy free Wifi. |
| A．Jefferson Memorial | B．Mandarin Oriental | C．The White House. | D．Twins Jazz |
4 . Top Vacation Destinations（目的地）for Sports Fans
Being a fan of a sport is pleasant for more than one reason. Take a look at some unforgettable trips a sports fan can take around the world.
Los Angeles
Basketball fans will love cities like Los Angeles and New York, home to the Lakers and Knicks. They will also be interested in visiting the hall of fame in Springfield, Massachusetts. There are plenty of fun cities to visit around the world for a basketball lover.
Florida
Travel to Florida and stay at Acqualina Resort &. Spa for a relaxing experience. You may be a person who never takes part in a team sport, but prefers personal activities like kayaking（皮划艇）.An experienced guide will lead the way as the water takes guests to Sandspur Island at last. Swim, or relax in the sand when you get to the island.
Boston & Chicago
Fenway Park is a must for baseball fans looking to tour one of the most unique ballparks in the United States. Chicago and Boston are two baseball cities with a long history. A visit to the two cities will excite baseball fans while they gain knowledge of the game that they love.
Wisconsin
Lambeau Field in Green Bay, Wisconsin is one of the most unique experiences in professional（职业的）sports. It has hosted several events over its history. Other college stadiums to consider are The Bighouse in Michigan and Notre Dame Stadium in South Bend, Indiana.
Tokyo
A trip around the world for a sporting fan isn't complete without a stop to Tokyo. The city is energetic, and the 32nd Summer Olympic Games are coming in July 2020 there.
1. Which city should a person who likes kayaking go to?| A．Los Angeles. | B．Florida. | C．Chicago. | D．Boston. |
| A．It has a good view of a beautiful island. |
| B．It is the best place for basketball lovers. |
| C．It once hosted professional sports events. |
| D．It has the most special ballpark in the USA. |
| A．The Olympic Games. | B．A Lakers game. |
| C．The Rose Bowl Game. | D．A Knicks game. |
So far as the brain is concerned, it can work as well and swiftly at the end of eight or even twelve hours f efforts as at the beginning. The brain is totally tireless. So what makes us tired.
Some scientists declare that most of our fatigue come from our mental and emotional(情感的) attitudes. One of England’s most outstanding scientists. J. A. Hadfield,says,“The greater part of the fatigue from which we suffer is of mental origin. In fact,fatigue of purely physical origin is rare.” Dr. Brill, a famous American scientist, goes even further. He declares,“One hundred percent of the fatigue of a sitting worker in good health is due to emotional problems.”
What kinds of emotions make sitting workers tired?Joy?Satifaction?No!A feeling of being bored,anger,anxiety,tenseness,worry,a feeling of nt being appreciated---those are emotions that tire sitting workers.Hard work by itself seldom causes fatigue.We get tired because our emotions produce nervousness in the body.
1. What surprised the scientists a few years ago?
| A．Fatigue toxinscould hardly be found in a labour’s blood. |
| B．Albert Eistein didn’t feel worn out after a day’s work. |
| C．The brain could wrk for many hours without fatigue. |
| D．A mental worker’s blood was filled with fatigue toxins. |
| A．Challenge mental work. |
| B．Unpleasant emotions. |
| C．Endless tasks. |
| D．Physical labor. |
| A．He agrees with them. |
| B．He doubts them |
| C．He argues against them. |
| D．He hesitates to accept them. |
| A．have some good blood |
| B．enjoy their work |
| C．exercise regularly |
| D．discover fatigue toxin |
