中国的少数民族语言大体上分为 ______、______、______、______、______五大语系。
参考答案:汉藏 阿尔泰 南亚 南岛 印欧
Now,an Internet game became more and more popular. People can “farm” on a piece of “land” and “grow”,“sell”(卖)“vegetables”, “flowers” and “fruits” on the Internet. They can make some e-money and buy “houses”.
What do people think of this game? Here are, some ideas.
Harold:I think they don’t like the real world and it is hard for them to face the real world.
Allan:Having fun together is the most exciting thing about it.
Laura:People are looking forward to the life in the village. It can help them understand the real world.
Ivy:It’s just waste(浪费) of time. People will not focus on(专注于)their work or study if they spend too much time on it.
小题1:What can people buy on the Internet farm?
A.Vegetables.
B.E-money.
C.Farm.
D.Houses.小题2:Who thinks “farm” games is very exciting?
A.Harold.
B.Allan.
C.Laura.
D.Ivy.小题3:What’s Ivy’s idea about “farm” game?
A.Popular.
B.Hard.
C.Waste time.
D.Have fun.小题4:What is the passage about?
A.“Farm” game.
B.Real world.
C.The life in the village.
D.Work and study.
如图所示,两个半径不同,内壁光滑的半圆轨道固定在地面上.一个小球先后从与球心在同一水平高度上的A、B两点由静止开始自由滑下,通过轨道最低点时( )
A.小球对两轨道的压力相同
B.小球对两轨道的压力不同
C.小球的向心加速度相同
D.小球的速度相同