阅读理解A study has found that red squirrels are facing growing competition from grey squirrels. However, a team of scientists is working hard to protect these red squirrels. The team has developed a system (系统) to help them, and the system is being tested in some places. Red squirrels have lived in the UK for about 10, 000 years, but there are only around 160, 000 left. They once lived in most woodlands but now they have to live in northern England, Scotland, the Isle of Wight off the south coast of England and Anglesey in north Wales. While there are 2.7 million grey squirrels in the UK. Grey squirrels were introduced from North America in 1876. They are bigger, so they are better at competing for food and areas to live in. They also carry a virus called squirrelpox. This virus doesn't harm grey squirrels but can be dangerous for the red squirrels. To deal with the problems red squirrels are having, scientists have developed a system called Squirrel Agent to help increase red squirrel numbers. The new system uses AI, and it has been trained to look at images and tell grey squirrels and red squirrels apart (分开). The system gets it right 97% of the time. The aim of the system is to help red squirrels by giving them more food, while stopping grey squirrel populations from getting even bigger. Using the information it has learned, the AI lets red squirrels get to feeders where they can eat lots of food without being with grey squirrels. To stop the grey population getting bigger, the system can offer grey squirrels other food. And there's something on the food that safely keeps grey squirrels from having too many babies, to keep their numbers in balance. And importantly, a human checks that the AI does identify grey squirrels properly.
(1)
What is Paragraph 2 mainly about?
A . Where red squirrels once lived.
B . When grey squirrels came to the UK.
C . How grey squirrels have got a virus.
D . Why red squirrels are in danger in the UK.
(2)
How can the Squirrel Agent system help red squirrels?
A . By giving them more food
B . By taking photos of grey squirrels.
C . By guiding them to most woodlands.
D . By training grey squirrels to use the system.
(3)
What does the underlined word "identify" in the last paragraph probably mean?
A . feed
B . catch
C . protect
D . recognize
(4)
What is the main purpose of the text?
A . To describe red squirrels' living habits.
B . To introduce the ways of saving red squirrels.
C . To explain grey squirrels' problems.
D . To show ideas about protecting grey squirrels.
答案: D
A
D
B