单选题
单选题 What is the main purpose of the talk?
  • A. To describe the migration of bats
  • B. To promote an appreciation of bats
  • C. To give advice about contact with bats
  • D. To explain how to care for young bats
【正确答案】 C
【答案解析】[解析] 7-10 Now that the warmer weather and longer days are here. we aren't the only ones spending more time outdoors. This is an active time for bats as well. Migratory bats are now returning to the area, and young bats are starting to explore their environment. Young bats go off course, and this is when most people come into contact with them. Bats are a normal part of our environment and can even be a good thing. Bats help keep down the insect population. especially mosquitoes. Normal bat activity includes sleeping during the daytime and becoming active and flying around in search of food at night, starting at dusk. It's unusual to see a bat during the day. Normal bats don't fly around in the daytime, or lie or crawl on the ground, so if you encounter a bat like that, you should call the health department immediately. If you have bats in your attic or house, contact a pest control agency. They do not kill the bats, but make recommendations on how to get the bats out of your home. You'll want to create a one-way valve from your house to outside so they can get out but can't come in. To avoid having bats in your house altogether, find all possible entry points into the house and close them by caulking or screening the gap. Bats can squeeze through a gap of one-half inch. Bats are the most likely carriers of rabies in our area, and almost one hundred percent of rabies cases are fatal. Make sure your dogs and cats are vaccinated against rabies. If you should come in physical contact with a bat, it's important to get in touch with the health department or a doctor immediately. If possible, catch the bat so it can be tested for rabies. 7. What is the main purpose of the talk? The main purpose of the talk is to give advice about contact with bats. The speaker says: ...if you encounter a bat like that, you should...; If you have bats in your attic or house, contact...; [f you should come in physical contact with a bat, it's important to
单选题 Why does the speaker say this:
  • A. To describe the reproductive behavior of bats
  • B. To show similarities between bats and mosquitoes
  • C. To give an example of how bats benefit us
  • D. To warn students about dangerous insects
【正确答案】 C
【答案解析】[解析] Why does the speaker say this: "Bats help keep down the insect population, especially mosquitoes." The speaker's purpose is to give an example of how bats benefit us. She says: Bats are a normal part of our environment and can even be a good thing.
单选题 How can you prevent bats from entering your house?
  • A. By blocking every opening
  • B. By planting bushes near the doors
  • C. By training your dog to hunt bats
  • D. By using poison to kill the bats
【正确答案】 A
【答案解析】[解析] How can you prevent bats from entering your house? The speaker says: To avoid having bats' in your house altogether, find all possible entry points into the house and close them by caulking or screening the gap.
单选题 Why does the speaker recommend getting medical advice if you come in physical contact with a bat?
  • A. Bats are needed for medical research.
  • B. Contact with humans is unhealthy for bats.
  • C. Bats' sharp teeth can cause a painful bite.
  • D. The bat might be carrying a fatal disease.
【正确答案】 D
【答案解析】[解析] Why does the speaker recommend getting medical advice if you come in physical contact with a bat? The speaker recommends getting medical attention because the bat might be carrying a fatal disease. She says: Bats are the most likely carriers of rabies in our area, and almost one hundred percent of rabies cases are fatal; If possible, catch the bat so it can be tested for rabies.