读经纬线示意图，图中虚线是晨昏线，阴影与非阴影部分代表两个不_爱下问搜题

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问题选择题

读经纬线示意图，图中虚线是晨昏线，阴影与非阴影部分代表两个不同日期

此刻，甲地地方时为(　　)

A．6时

B．15时

C．9时

D．21时

答案

答案：D

本题考查日期分界线。地球上的日期分界线有两条，一条是180°经线，另一条是0:00所在经线。图中一格经度间隔为90°。根据图中虚线是晨昏线，则甲右侧经线的地方时为0:00，晨昏线为昏线，与赤道的交点的地方时为18:00，甲地地方时为21:00。

阅读理解

School Report Term :Autumn Name: Tom White Age:16 From: Class2,Grde7
English	He is good at speaking English, but there are always a few mistakes in his homework. I believe he can do it better.	A
Chinese	I don’t think Tom White is very interested in Chinese. He can’t put up his hand in class as much as possible. I think he should read more Chinese and try not to be shy.	B
Math	He is interested in figures, but he is always careless and he can’t always pay attention to the result. If he wants to make great progress, he must be more careful.	B
Science	He likes doing experiments very much and he has lots of good ideas in his work.	A
History	Good work. He likes telling history stories.	A
Geography	Getting better. He should have interest in it.	B
P.E.	Excellent, he is a good player in the school basketball team.	A
Music	Very good. He is interested in singing new songs well.	A
Art	Just so so.	B
General: Tom White is a clever boy. He spends more time in playing basketball and singing. Sometimes he can’t hand in his homework on time. But in English, Science, History, P.E., and Music, he has excellent performance. We believe Tom White will put more effort into Chinese and Math. Allan Green Headmaster

小题1:Which is not true according to the school report?

A．Tom White is sixteen years old.

B．He draws pictures very well.

C．He likes history very much.

D．He is good at playing basketball.

小题2:How does Tom White do in English study?

A．Better than Chinese study.

B．Best of all the subjects.

C．No mistakes in his homework.

D．Worst of all.

小题3:In Science, Tom White is good at .

B．singing songs

C．playing basketball

D．doing experiments

小题4:The music teacher his singing.

A．is worried about

B．feels sorry about

C．is pleased with

D．isn’t interested in

小题5:What does the Geography teacher say?

B．Better than other subject.

C．He has much interest.

D．fair(一般)

判断题

可燃物质在没有火源的情况下，在有助燃物质的环境中能自行着火燃烧的最低温度，称为自燃点。