英语3第一单元单元练习英语3第一单元单元练习.doc

窗体顶端 Part I ????Script Directions: Listen to the short dialogs, and then choose the correct answers to the questions. You will hear the recording twice. After the first playing, there will be time for you to choose the correct answers. Use the second playing to check your answers. 1. (Listen to the audio recording for the question.) ? A. It is the biggest problem. ? B. It is the second most important problem. C. It is important but not the most urgent problem. ? D. It is not important. ? 2. (Listen to the audio recording for the question.) ? A. The same as the mans. ? B. The environment is hopeless. C. The environment is improving. ? D. The environment is free from problems. ? 3. (Listen to the audio recording for the question.) ? A. Its too late for the government in the womans home town to protect water resources. B. The water in the mans home town is not polluted. C. People in the womans home town have a strong sense of water conservation. ? D. The man invites the woman to visit his home town. ? 4. (Listen to the audio recording for the question.) ? A. Go to the zoo. ? B. Read a book. C. Join in a club. D. Go for a trip. ? 5. (Listen to the audio recording for the question.) ? A. Plastic. ? B. Coal. ? C. Exhaust air. D. Waste rubber. ?  Part II ????Script Directions: Listen to the passage three times. When the passage is read for the first time, listen for the general idea. When the passage is read the second time, fill in the blanks numbered from S1 to S7 with the exact words you hear. For blanks numbered from S8 to S10, write down either the exact words you hear or the main points in your own words. When the passage is read the third time, check your answers. Every day, the average person breathes in about 20,000 liters of air.?Every time we breathe, we risk inhaling dangerous (1) that have found their way into the