【题目】读地球的半径和赤道周长图,回答下列问题.
(1)图中A所代表的地理事物的名称是 半径,B代表的地理事物的名称是 半径;A (大于、小于)B,因此,地球是一个 的球体.
(2)C所代表的地理事物的名称是 ,长约 千米.
(3)地球的平均半径长约 千米,地球表面积约 平方千米
科目:初中地理 来源: 题型:
【题目】
Haze (雾霾) has become a common word in recent years. It is a kind of air pollution caused by human beings. More and more cars are on the road, and more and more factories are built everywhere, so the pollutant is gave off that do harm to people's life and health, Besides, haze will make the traffic heavier and accidents easy to happen, because drivers can't see the road clearly in the haze.Thirdly, if someone inhales (吸入) much haze, he has greater possibility to get cancer.
In order to protect ourselves and environment, we should take action at once instead of waiting for help. There are some tips for you:
Wear a mask(口罩): this is an efficient way to prevent you from inhaling the haze. But pay attention to buy the masks that arestandard (合格的) and as suitable as the size of your face. And after using, fold the masks, put away when they are dry, and don't wash them.
Don't go outside as possible as you can: in the haze, you should reduce (减少) the time on which you spend doing morning exercise. For workers, don't ride to offices but take a bus. And when going inside, you should drink much water.
The way to clean is very' simple: use the warm water to wash your face, mouth and nasal cavity(鼻腔). This can help you to wash ont the pollutant.
Don't keep windows open for a long time: if the haze is more and more serious, don't open the windows. If you want to, please avoid the peak(最高峰) of haze.
All people want to live in a healthy way, so do everything that we can do in our best.
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科目:初中地理 来源: 题型:
【题目】读“陆半球地图”,回答问题。
(1)A大洲居民以________人种为主。
(2)从发展水平看,B大洲大多为____________国家。
(3)七大洲中,“陆半球地图”没有显示的大洲有大洋洲和_________。
(4)简述C大洲地势与河流的关系_________。
(5)在某次军事演练活动中,彼得船长驾船从D点依次向正北、正东、正南、正西各行驶了500千米后,发现只能回到D点的正东面。请用地理知识向彼得船长解释不能回到D点的原因:______。
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