题目内容
In the African country of Tanzania, a company from Belgium called APOPO trains African giant pouched rats(非洲巨袋鼠) to find dangerous land mines(地雷)left over from wars. The rats are trained to smell out some of the chemicals in the mines. After 8-12 months of training, the rat can find mines so they can be safely destroyed.
Trained dogs often perform this important work, but APOPO director Bart Weetjens recently discovered that the African giant pouched rat costs far less money to train and care for. These rats may seem huge. Their bodies are 12 to16 inches long, not including their tails. But their size suits the job: At one and a half to 3 pounds, they are too light to set off the land mines.
Rats and trainers search one small area at a time. When a rat smells mines, it lets the trainers know by pawing(用爪子抓)at the dirt in that spot. The trainers mark each spot on a map. Later, technicians explode the mines safely. In the African country of Mozambique, nearly half the population is younger than 15 years old. A lot of kids are in danger as they play or work.
“In the town of Vilanculos, children had been playing on the football field, until there was an accident,” Bart Weetjens said. APOPO rats and trainers helped other organizations make the area safe. “The football field has been opened again, and there is no danger any more,” Weetjens said.
About 80 million land mines are buried out of sight in more than 60 countries around the world. As APOPO’s program grows, the rat heroes might travel the globe!
1.The underlined word “they” (Para. 1) refers to_____.
A.the trainers B.the mines C.the wars D.the rats
2.Why are rats chosen to be trained to find the land mines?
A.They are native to Africa B.They are smarter than dogs
C.They are cheap to keep and train D.They are quick to escape from danger
3.What is the task of the rats in the job?
A.To mark a map B.To find the mines
C.To set off the mines D.To paw at the ground
4.What happened on the football field in Vilanculos?
A.A land mine exploded B.A player was injured during the training
C.The children were attracted by the rats D.The villagers tried to get the field back
BCBA
Lisa Reid lost her sight(视力) because of cancer ten years ago, but a knock on the head has given it back. The 24-year-old lady has 36 part of her sight after being knocked on the head. Eleven days ago, Miss Reid 37 down to kiss her guide dog good night, but accidentally(意外地) hit her head on a coffee table. 38 she woke up the next morning, she could see for the first time in 10 years.
“I could 39 believe it. It’s amazing,” she said. The cancer that stole Miss Reid’s sight was diagnosed(诊断) 13 years ago. Doctors gave her a five percent 40 of survival after discovering she had brain cancer. An operation(手术) to excide the tumor(切除肿瘤) was 41 , but it damaged her eyes and had a bad effect 42 her sight.
Miss Reid was blind at 14, and her eyes were only able to notice 43 and dark.. “I had lost hope and thought that everything was against me,” she said.
Now Miss Reid has recovered 80 percent of the sight in her left eye, but her color vision(色觉) is 44 . The eye expert has no 45 for her recovery because he has never seen a similar case(病例).
After Miss Reid recovered her sight on November 17, she 46 it a secret at the beginning, but later in the day she called her 47 and over the telephone read the health warning on a cigarette package(盒) to her mum. “Lisa 48 me and said‘there’s been a change; listen to this’,” said Louise Reid, Miss Reid’s mother. “Then she started reading to me. I was surprised.” Unsure whether her sight would last(持续), Miss Reid waited 49 the next day before 49 her walking stick and spreading the good news. She couldn’t wait to celebrate it with her family and friends.
A.returned | B. recovered | C. damaged | D. examined | |
A .bent | B. stood | C. lay | D. jumped | |
A. Before | B. While | C. When | D. Since | |
A. always | B .almost | C. hardly | D. simply | |
A .danger | B .chance | C. ability | D. sign | |
A. wrong | B. successful | C. difficult | D. expensive | |
A. on | B. up | C. to | D. of | |
A. light | B. color | C. night | D. white | |
A. wild | B. weak | C. wrong | D. sick | |
A. explanation | B. description | C. purpose | D. excuse | |
A. allowed | B. hid | C. kept | D. protected | |
A. doctor | B. mother | C. friend | D. boss | |
A. emailed | B. warned | C. showed | D. rang | |
A. till | B. on | C. in | D. off | |
A.throwing away | B.sending away | C. handing out | D. running out |