“龙生龙,凤生凤,老鼠的儿子会打洞”这句谚语说明的生物现象是( )
A.生殖
B.发育
C.遗传
D.变异
答案:C
读某区域海平面等压线(单位:百帕)分布图,回答下列各题。
小题1:由图可判断M和N两地天气
①M地比N地风力小
②M地比N地风力大
③M地比N地气流更暖湿
④M地比N地气流更干冷
A.①③
B.②④
C.①④
D.②③小题2:图中M点的风向最可能是
A.西北风
B.东北风
C.西南风
D.东南风
根据句意及词首字母写出单词
1.What time do you usually get up? I usually get up at five o ________.
2.Li Lei isn’t at school today. B ________ he is ill.
3.Which bus do you t ________ to go to work?
4.What do you know a ________ him?
5.My son does his h ________ at 6:30.
6.The children often play football at 4:00 in the a ________.
7.My father goes to work very e ________ in the morning.
8.What do you often eat for b ________?
9.The bus usually l ________ at 8:00 and comes back at 12:00.
10.Are you b ________ today? No. I have nothing to do.