**完整历年四级试卷pdf版本下载打印,请去V-X-搜-公-众-号“:多学英语**
1、听力选项:
Questions 19 to 21 are based on the passage you have just heard.
19. A) It creates a wonderful setting for dating.
B) It may cause strange physical reactions.
C) It turns parks into picnic sites.
D) It may result in a crowded beach.
20. A) Breathing difficulty.
B) Bad breath.
C) Excessive sweating.
D) High blood pressure.
21. A) It protects people against bacteria.
B) It enables people to build up endurance.
C) It accelerates people's blood circulation.
D) It provides people with extra energy.
2、听力原文(点击图片放大)和答案:
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