1、摄氏和华氏

   华氏度(Fahrenhite) 和摄氏度(Centigrade)都是用来计量温度的单位。包括我国在内的世界上很多国家都使用摄氏度，美国和其他一些英语国家使用华氏度而较少使用摄氏度。

    华氏度F＝32＋(9/5)乘以摄氏度C

    2、北京和悉尼的相反四季

    We have summer, fall, winter, and spring. But when it’s fall in China, it’s spring in Australia. When it’s winter in Beijing, it’s summer in Sydney. In Beijing, it’s spring from March to May. Summer is from June to August. Fall is September to November. Winter is December to February the next year. But, in Sydney, it’s spring from September to November. Summer is from December to February the next year. Fall is from March to May. Winter is from June to August. If you’re planning a trip, look at a map first and remember that it may not be the same season where you’re going.