题目内容

【题目】假如有四个人同时从北极出发,分别沿0°、90°E、90°W和180°四条经线匀速前进,则()

A. 前进的方向相同,在赤道处会合

B. 前进的方向相同,在南极会合

C. 前进的方向不相同,但在南极会合

D. 前进的方向不相同,但在赤道会合

【答案】B

【解析】

根据经线是连接南北两极并同纬线垂直相交的半圆,也称子午线。经线指示南北方向;所有经线都呈半圆状且长度相等;两条正相对的经线形成一个经线圈;任何一个经线圈都能把地球平分为两个半球。纬线是在地球仪上,顺着东西方向,环绕地球仪一周的圆圈。所有的纬线都相互平行,并与经线垂直,纬线指示东西方向。纬线圈的大小不等,赤道为最大的纬线圈,从赤道向两极纬线圈逐渐缩小,到南、北两极缩小为点,进行分析解答。

经线是连接南北两极并同纬线垂直相交的半圆,指示南北方向。由此可判定,四人同时从北极出发,分别沿0°、90°E90°W180°经线匀速前进,那么他们前进方向相同,都是向正南方向前进,在赤道上他们的距离最远,都在南极点会合。依据题意。

故选:B

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【题目】 Whitney is a young girl. She is friendly to everyone, But Whitney doesn’t have many friends, because she is kind of shy. She never wants to be a star at school, but she wants to have a friend to share secrets and have a great time with. She thinks friends are important.

This year, Whitney goes to a new school. It's big and beautiful, but a little far from her home. So Whitney rides to school every day.

Before school starts, she is afraid that she won’t have any friends there. In her first English class in the new school, Mr Green, the teacher, asks the students, "What is your goal([ 目标) for this class?" Many of the students say they want to learn a lot of things or something like that.

Whitney’s goal is not the same. She says she wants to make one good friend. "An interesting goal, "says Mr Green. "Every one of us needs a friendship(友谊).”

After class, one student comes to Whitney.

“Nice to meet you, Whitney! My name is Becky Smith,” she says and holds out (伸出) her hand. "1 want to be your friend. ” “Nice to meet you too. ” Whitney smiles and takes her hand.

____________________

1Why doesn’t Whitney have many friends?

A.Because she is kind of shy.B.Because she has lots of secrets.

C.Because she isn't friendly to others.D.Because she doesn’t like her classmates.

2How does Whitney go to school?

A.By busB.By planeC.By undergroundD.By bike.

3What subject does Mr. Green teach?

A.MathsB.EnglishC.HistoryD.Science

4What can we know about Whitney’s goal?

A.No one in her class like her goal.B.Her goal is to make a good friend

C.Her parents think it is an interesting goal.D.She likes to talk about her goal with others after class.

5Which of the following is best for “_______” in the passage?

A.A new friendship starts.B.This is a really interesting class.

C.It’s a wonderful dream.D.They are Mr Green’s favourite students.

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