1 . A five­-year-­old dog named Kelsey has been praised as a hero for helping to save the life of her owner who slipped in the snow and broke his neck.

The man, Bob, was alone when he left his Michigan farmhouse on New Year’s Eve to collect firewood. Expecting a journey of only several meters, Bob was wearing just long johns (秋裤), a shirt and slippers when he went outside, although the temperature was around－4 ℃.

After the accident, he was unable to move in the snow.Fortunately, Kelsey came to his assistance.

“I was shouting for help, but my nearest neighbor is about 400 meters away, and it was 10:30 pm,” Bob explained.“But my Kelsey came. By the next morning, my voice was gone and I couldn’t yell for help, but Kelsey didn’t stop barking.”

Bob’s companion kept him warm by laying on top of him.She licked his face and hands to keep him awake.“Kelsey kept barking but never left my side,” Bob recalled. “She kept me warm.I knew I couldn’t give up and that it was my choice to stay alive.”

Bob spent 19 hours in the freezing cold. When he finally lost consciousness, his dog kept barking.Finally,   hearing the barking, Bob’s neighbor discovered him at 6:30 p. m.on New Year’s Day and called the emergency services at once. When Bob arrived in hospital, his body temperature was below 21 ℃. However, doctors were surprised to find that he didn’t have any frostbite (冻疮). They believed it was because of Kelsey’s determination to keep him warm. Dr. Chaim Colen, the doctor who treated Bob, said, “Animals can help and his dog really saved him ... he was very fortunate.”

Bob said he was “enormously” grateful for both Dr. Colen and his Kelsey. “They saved my life.They are truly heroes!”

1. What happened to Bob on New Year’s Eve?

A．He left his dog alone in his farmhouse.

B．He was praised for saving a dog owner.

C．He broke his neck and couldn’t move.

D．He heard his neighbor’s shouting for help.

2. Why did Kelsey keep barking?

A．To keep warm.

B．To stay alive.

C．To keep Bob awake.

D．To seek help from others.

3. How does Dr. Chaim Colen feel about Kelsey?

A．Helpful.	B．Fortunate.
C．Grateful.	D．Friendly.

4. What can be a suitable title for the text?

A．A Neck­breaking Accident

B．The Magic Night

C．Warmth on a Winter’s Night

D．Determination to Keep Alive

2 . It happens every spring. Flowers suddenly come out everywhere on the same day, as if they made an appointment with one another. But how exactly do plants “know” when to flower?

It is a question that has puzzled biologists for years. But according to Science Daily, a US research group may have finally answered it —the secret lies in a protein (蛋白质) called FKF1. This allows plants to sense the differences in day lengths so that they can tell the seasons are changing.

Researchers discovered the FKFI protein when they were studying a plant called Arabidopsis. They found that the FKFI protein is a photoreceptor (感光器). This means it is sensitive to, and can be activated by sunlight.

“Plants produce this protein every day in the late afternoon throughout the year. If there is no light at this time, for example, in winter when the sun goes down early, the protein won’t be activated,” explained Takato Imaizumi, the leader of the study. “But when spring comes and the days get longer, the FKF1 protein can be activated by daylight and the plants ‘know’ it is time to flower.”

Although researchers have only studied how the FKF1 protein works in the Arabidopsis, they believe that the process is similar in other plants, including crops like rice and wheat. This could be useful to the agricultural industry in the world.

1. The underlined word “activated” in paragraph 3 probably means__________.

A．woken

B．prevented

C．produced

D．weakened

2. The study may help us to__________.

A．produce more rice and wheat in winter

B．develop the global agricultural industry

C．grow plants that flower the whole year

D．produce more protein to activate plants

3. This text may be taken from__________.

A．a travel brochure	B．a science magazine
C．a medical magazine	D．a personal journal

9 . 语法填空

Tibetan antelopes live on the plains of Tibet, Xinjiang, and Qinghai.     1     (watch) them move slowly across the green grass, I’m struck by their     2     (beautiful). At the same time, I’m also reminded     3     the danger they are in. They     4     (hunt), illegally, for their valuable fur.   

Zhaxi, a villager from Changtang, works at the Changtang National Nature Reserve. “We’re not trying to save the animals,” he says. “    5     (actual), we’re trying to save ourselves.” The 1980s and 1990s were bad times for the Tibetan antelope,     6     population dropped by more than 50 percent. Hunters were shooting antelopes     7     (make) profits. Their habitats were becoming     8     (small) as new roads and railways were built.   

In order to save them, the Chinese government placed them under national protection. The measures were     9     (effect). The antelope population     10     (recover) and in June 2015, the Tibetan antelope was removed from the endangered species list.

10 . 课文内容填空
　　The fish was coming in on his circle now calm and beautiful looking and only his great tail moving. The old man pulled on him all that he could     1     (bring) him closer. For just a moment the fish turned a little on his side. Then he     2     (straight) himself and began another circle.  
　　He felt faint again now    3     he held on the great fish all the strain that he could.
　　But when he put all of his effort on, starting it well out    4     the fish came alongside and     5     (pull) with all his strength, the fish pulled part way over and then righted himself and swam away.
　　That way nothing is accomplished. His mouth was too dry     6     (speak)but he could not reach for the water now.  
　　On the next turn, he     7     (near) had him. But again the fish righted himself and swam slowly away.
　　Twice more it was     8     same on the turns.
　　He tried it once more and he felt    9     (him) going when he turned the fish. The fish righted himself and swam off again slowly with the great tail weaving in the air.
　　I’ll try it again, the old man promised, although his hands were     10     (mush) now and he could only see well in flashes.