题目内容

【题目】 北京天安门广场上的国旗，每天伴着日出而升起，随着日落而降下。下表是北京某中学的学生记录2019年四个节日升国旗的时间.

据此完成下列小题。

日期

1月1日

5月1日

7月1日

10月1日

升旗时间

07：36

05：15

04：49

06：10

【1】一年之中，造成天安门广场的升旗时间不同的根本原因是（ ）

A.地球自转B.地球公转C.昼夜更替D.四季变化

【2】四个节日，北京正午太阳高度最大的是（ ）

A.1月1日B.5月1日C.7月1日D.10月1日

【答案】

【1】B

【2】C

【解析】

根据地球围绕太阳公转时，地轴与地球公转轨道的平面约成66.5°的固定夹角。这就使得一年内，太阳光线的直射点有规律地在南北回归线之间移动，各地正午的太阳高度也随之发生有规律的变化。除了赤道，地球其他地方一年中都有昼夜长短的变化。在南北极圈以内，甚至会出现“极昼”和“极夜”现象，进行分析解答。

【1】地球绕着地轴不停地旋转叫地球自转，地球自转的方向为自西向东，地球自转产生的现象是昼夜交替、日月星辰东升西落和时间差异。公转产生的现象有季节的变化、昼夜长短的变化、五带的产生、正午太阳高度的变化等。由此可知，是由于地球的公转运动，造成了昼夜长短不同，因此升旗时间的不同。故选：B。

【2】当太阳直射北回归线的时候，也就是夏至日，北半球的北京太阳高度角最大，表中四个节日中7月1日最接近夏至日。故选：C。

本题考查地球公转的特点，结合图解答即可。

练习册系列答案
相关题目

【题目】

A. busy B. repair C. work D. take part in E. together

Over the weekend, American people spend their time in many different ways.

All the family members may enjoy weekend【1】 .They may go shopping, go for a drive, or visit friends. They may also invite friends over and have a party at home. Many American families【2】 ports, such as swimming in summer and skiing and skating in winter.

Weekend is also me for America miles to work in their gardens or on the houses, Many families plant flowers and grow vegetables. Some families use the weekend to paint or 【3】their houses. For many Americans, here are so many things to do that weekends are just as 【4】 as weekdays.

【题目】

【1】The students of Class 2 will see the animals at the zoo this Sunday afternoon.(改为否定句)

The students of Class 2________ ________ the animals at the zoo this Sunday afternoon.

【2】I think there will be more pollution.(改为否定句)

I________ think there________ be more　pollution.

【3】The twins will play baseball after school.(对画线部分提问)

_______ will the twins________ after school?

【4】It will rain in Nanjing tomorrow.(改为同义句)

________ ________ ________ rain in Nanjing tomorrow.

【5】I have more apples than Lily.(改为同义句)

Lily________ ________ apples than I.

【题目】地球仪是为了便于认识地球，人们仿造地球的形状，按照一定的比例缩小，制作的地球的模型。请根据地球仪相关知识，完成下面小题。

【1】在地球仪上，纬线是

A.指示南北方向B.与地轴垂直的半圆

C.长度不相等的圆圈D.全球可以划分出十条纬线

【2】若要使房子周围的门窗都朝南，房子只能建在

A.赤道上B.北极点上C.南极点上D.本初子午线上

【3】东、西半球的划分是以

A.20°E和160°W的经线圈划分B.0°纬线圈划分

C.0°和180°经线圈划分D.20°W和160°E经线圈划分

【4】本初子午线是

A.南北纬度的分界线B.南北半球的分界线

C.东西经度的分界线D.东西半球的分界线

【题目】台湾是我国神圣不可分割的领土，据此回答下列各题：

【1】我国爱国诗人余光中先生的《乡愁》诗中写到“…而现在，乡愁是一湾浅浅的海峡，我在这头，大陆在那头．”诗中的“海峡”是指（）

A. 渤海海峡 B. 琼州海峡 C. 朝鲜海峡 D. 台湾海峡

【2】“五十六个民族，五十六枝花，五十六个兄弟姐妹是一家…”这首歌曲唱出了各族人民的心声．请你判断，我国人口最多的少数民族主要所在省（区）是（）

A. 新疆维吾尔自治区 B. 广西壮族自治区

C. 西藏自治区 D. 内蒙古自治区

【题目】2017年8月8日，四川省阿坝州九寨沟县（33.2°N，103.8°E）发生7.0级地震，造成受灾区域部分房屋倒塌和人员伤亡。据此回答下列各题。

【1】地震发生时，在九寨沟旅游的小红正在酒店的10楼休息，此时小红的避灾逃生行为正确的是

A. 迅速乘坐电梯逃离 B. 从窗户跳下逃生

C. 将枕头抱在头上，躲进卫生间 D. 大声呼救

【2】四川省地震多发的原因是

A. 山区面积广 B. 位于印度洋板块与欧亚板块交界的地带

C. 大陆漂移 D. 位于太平洋板块与欧亚板块交界的地带

【题目】根据句意用所给词的适当形式填空

【1】We ________(摘）two baskets of apples already .Let’s go and have a rest .

【2】Don’t leave the tap ________(流动）.It’s a waste of time .

【3】Among all my friends Tom is ________( 亲密的）one .

【4】After she got out of the car , her friends greeted her with ________(亲吻）.

【5】Please listen to the ________(非正式谈话）and tell me what they are about .

【6】Grandmother always ________(碰， 触到）my head when she talks with me .

【7】The little girl is too small ________(推， 挤）past you .

【8】I don’t agree with you , so I didn’t join your ________(discuss).

【9】Speak slowly and practise ________(表达)yourselves clearly .

【10】Everybody will be lucky or ________(成功的）in their life .

【题目】 John worked in an office in a small town. One day his boss_________ him, “John. I want you to go to London, and to_________Mr. Black. Here's the address. His office is near the station.” John went to London_________train. He left the station and thought, “The office isn't_________the station. I'll find it_________.

But after an hour he was still looking for it, so he stopped and asked an old woman. She said, “Just go along this street. turn left_________the end, and it's the_________building on the right. "John went and found it.

_________ days later, John went to the same city, _________ again he couldn't find the office, so he asked someone the way. It was__________old woman! She was very surprised and said, “Are you still looking for that place?”

【1】A.saidB.said toC.talked toD.spoke

【2】A.seeB.watchC.lookD.found

【3】A.onB.byC.withD.in

【4】A.next toB.nearC.far fromD.in front of

【5】A.easyB.easilyC.slowlyD.early

【6】A.byB.toC.atD.on

【7】A.fiveB.twelveC.thirdD.twenty

【8】A.MuchB.A fewC.A littleD.A lot

【9】A.becauseB.whenC.butD.so

【10】A.differentB.sameC.the differentD.the same

【题目】用所给单词的正确形式填空。

【1】The number of students ________ (be) bigger than before.

【2】Nowadays, people work as the killers of the environment, like ________ (pollute) the river and killing the wild animals.

【3】She went to see a film without ________ (tell) her parents.

【4】Friday is my ________ (busy) day in a week.

【5】Of all the subjects, I like English ________(good).

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网