阅读理解。 How do you know the weather? We learn it on the radio and TV every day. Different countries have different kinds of weather. For example, the weather in Australia is different from that in North China because the seasons in Australia are the opposite. Its summer is from December to February. But in North China it's winter at this time. And in Australia winter is in June, July and August. So when it's spring in North China, it's autumn in Australia. When you visit the country, you'd better choose (选择) the best time. 1. How do we know the weather? [     ] A. We learn it from a letter. B. We can see it by ourselves. C. We learn it on the radio and TV every day. D. We should learn more books every day 2. When winter lasts from December to February in North China, the Australian season is _____. [     ] A. spring B. summer C. autumn D. winter 3. When it's _____ in Australia, it's in _____ North China. [     ] A. spring; autumn B. autumn; summer C. summer; spring D. spring; summer 4. You can go _____ in Australia when it is winter in China. [     ] A. skating B. swimming C. playing in the snow D. to see snow 5. When you are visiting North China when Australia is in summer, you'd better____. [     ] A. listen to the weather report B. take enough warm clothes C. help them with the harvest D. go swimming or boating in the lake or river