1 . In the United States, the baggage of passengers from abroad will get inspected by the beagles (小猎兔犬) of the United States Department of Agriculture (USDA). Working with human officer partners, the beagles sniff (嗅) out probable threats to American agriculture.
An orange or an apple, for example, might contain a Mediterranean fruit fly. Ham could carry some disease. These could cause great damage to farmers’ crops and livestock (家畜). “Once we introduce something that is not part of the environment, maybe there aren’t any controls of it in the environment,” said USDA’s Lisa Davis at the National Detector Dog Training Center in Orlando, Florida. “The best thing for us to do is prevent it from coming across the border.”
When a beagle sniffs a bad smell, it signals its partner by sitting. The human partner then examines the baggage. When the dog is right — which happens 90 percent of the time — it gets something to eat.
“The dogs are not out there working,” explained Davis. “They’re out there playing. It’s a game to the dogs.” The human partners make sure the beagles get first-class medical attention, too. When the dogs finally stop working after 9 to 11 years, the USDA finds caring homes for them. It’s a dog’s life indeed!
Their human partners work and study harder. Most of them hold degrees in the biological sciences or related sciences.
How well do the beagles do their jobs? Davis said, “Each year our 54 teams find around 75,000 items.” Since even one dangerous item could cause great damage, that’s a great result for America’s agricultural environment.
1. What might be a problem with agricultural products brought into the US from abroad?| A．They may contain something illegal. |
| B．They often cause serious air pollution. |
| C．They often go bad and give off some bad smells. |
| D．They may harm America’s agricultural environment. |
| A．playing a game | B．begging for a treat |
| C．sitting next to the item | D．barking at their partners |
| A．may fall ill because of some threats |
| B．often work harder than their partners |
| C．are doing a job that is really dangerous |
| D．get enough love and care from their partners |
| A．the beagles enjoy inspecting items |
| B．the beagles play an important role |
| C．the number of threats found by the beagles is big |
| D．one dangerous item could cause great damage |
2 . On my recent trip to Sydney with my parents,we visited the Wildlife Park.
The Wildlife Park has lots of different animals. Some are native（当地的）to Australia and can only be found there. There are over 600 animals there，including kangaroos, koalas and crocodiles（鳄鱼）.They are kept in their natural environment. I like the Wildlife Park better than a zoo where most of the animals are in cages.
We first spent some time with the kangaroos. We were allowed to touch and feed them. It was very exciting to be so close to them.There were koalas there too. They looked very cuddly（令人想拥抱的）. Although we were not allowed to carry them, I got to take a photo with one. It is a wonderful souvenir of my holiday in Sydney.
The Wildlife Park has plenty of freshwater and saltwater crocodiles. Some of them are really big and scary with huge teeth! I did not want to get too close to them.
There was also a bird show. The keepers showed us different species they had. I saw an old parrot which could “talk”. It made a great impression on me.
I enjoyed the trip very much.There was so much to see.
1. Where is the Wildlife Park？| A．In Sydney. |
| B．In Cairo. |
| C．In Paris. |
| D．In Rome. |
| A．A parrot that could talk. |
| B．A chance to feed a kola. |
| C．A photo with a kola. |
| D．Food for the kangaroos. |
| A．They lived in water. |
| B．The writer was afraid of them. |
| C．The writer did not want to feed them. |
| D．The writer did not like the smell of saltwater. |
| A．The kangaroos are kept in cages in the Wildlife Park. |
| B．The writer traveled to the Wildlife Park alone. |
| C．The writer went to see koalas first. |
| D．The writer watched a bird show. |
3 . It goes without saying that plastic is killing our planet.
Go cupless
Plenty of restaurants and cafes are now rewarding their customers with discounted drinks.
Buy local
A brilliant way to avoid buying needless plastic is to buy fresh produce from local shops. Supermarkets contribute more than 800,000 tonnes of plastic packaging waste every year.
Cut down on packaging
Companies such as Lush are passionate about bringing beautiful eco-friendly products to their customers and have very little packaging. Get to know the companies you buy from.
It has become the norm on a shopping trip to buy many cleaning products. But, there’s a safer and more eco-friendly way to go about it. Cut out the packaging and harmful ingredients by creating natural products of your own. You can make the cleaning products all by yourself.
| A．Work together |
| B．Do a little DIY |
| C．Get to support them |
| D．And most products they sell include avoidable plastic |
| E．By buying locally you reduce the waste and support locals |
| F．The only condition is that they bring in their own reusable cups |
| G．It's true that we’ve started to take notice but so much more needs to be done |
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注意：1.每处错误及其修改均仅限一词：
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My name is Ma Lili, an survivor of the Tangshan earthquake in 1976. Many strange things had happened before the earthquake , but we didn't take them serious. Fifteen seconds late, the large city lay in ruin. My family and I were buried under the building. Luckily, soldiers came to our rescue in time. It was reported that Tangshan was the centre of the earthquake but tens of thousands of people died, what shocked the world! At that time, some people were thought Tangshan would disappear from the world. However, Tangshan soon begin to breathe again. We all devoted ourselves to rebuild it and now the city is becoming even beautiful than before.
5 . A group of scientists trained dogs to detect(发现)a crop disease called citrus greening. The disease has affected orange, lemon and grapefruit trees in the American states of Florida, California and Texas. The dogs can detect the disease weeks to years before it appears on tree leaves and roots, the researchers report. Using dogs is also faster, less costly and more exact than having people collect hundreds of leaves for lab analysis.
Timothy Gottwald is a researcher in the study. He said, “This technology is thousands of years old — the dog's nose. We’ve just trained dogs to hunt new prey：the bacteria that cause a very damaging crop disease.”
Citrus greening is caused by a kind of bacteria that are spread by a tiny insect that feeds on the leaves and stems of citrus trees. Once a tree is infected(感染)，there is' no cure. The disease has also hurt citrus crops in Central and South America and Asia. In one experiment involving grapefruit trees in Texas, trained dogs were correct 95 percent of the time in telling the difference between newly infected trees and healthy ones. “The earlier you detect the disease, the better chance you have at stopping healthy trees being infected by removing infected ones,” Gottwald said.
Professor Matteo Garbelotto says the new research shows that dogs can detect an infection well before present methods. He has been involved in similar research but had no part in the new study.
Laura Sims is a plant scientist. She praised the steps taken to find out if the dogs were detecting the bacteria itself or a plant's reaction to an infection. To do that, the researchers infected different kinds of unrelated plants with the bacteria in a laboratory. The dogs were still able to pick out the infected plants.
Gottwald said, "You've seen dogs working in airports, detecting drugs and explosives. Maybe soon you will see them working on more farms."
1. What does the text say about citrus greening?| A．It mainly damages tree branches. |
| B．It' s impossible to detect at an early stage. |
| C．Dogs can better detect it than humans. |
| D．Humans have to analyze tree roots to detect it. |
| A．By tasting. | B．By touching. |
| C．By observing. | D．By Sniffing. |
| A．help infected trees to recover | B．keep it from spreading further |
| C．improve the quality of fruit. | D．better protect infected trees |
| A．Dogs will take the place of humans to conduct risky jobs. |
| B．Trained dogs make no mistakes in citrus greening detection. |
| C．Dogs use plants' reaction to an infection to help with their detection. |
| D．Using dogs for citrus greening detection will be more widespread. |
