【简答题】根据句意及首字母提示完成单词。 1. The sun is shining (照耀). It's s______ today. 2. It was c______. The sun was behind the clouds. 3. —How's it going? —T______! —Why? —Because it is raining all day. 4. It's very cold ...
【简答题】短文填词 How far is the sun from the earth? This is really a question ________(引起兴趣) scientists of all times. But they had no way of getting an exact answer.Now with the use of radio telescope, they are ...
【单选题】Space is a dangerous place,not only because of meteors but also because of rays from the sun and other stars.The atmosphere again acts as our protective blanket on earth.Light gets through,and this is...
A.
it supplies the heat necessary for human survival
B.
it provides sufficient light for plant growth
C.
it protects him against the harmful rays from space
【简答题】n England, people often talk about the weather because they can experience ( 经历 ) four seasons in one day. In the morning the weather is warm just like in spring. An hour later black clouds come and t...