问题 解答题
张阿姨、王阿姨和李阿姨都带子女进城读书,三家合租了一套三室一厅的房子,具体情况如下表.现在每月房租是1200元,这三户人家应该怎样承担房租比较合理?(请简要写出解决问题的过程)
人口住房面积备 注
张阿姨3人30平方米公用面积40平方米(含客厅、卫生间、厨房等)
王阿姨3人30平方米
李阿姨2人20平方米
答案

总面积是:30+30+20+40=120(平方米),

平均每平方米的房租:1200÷120=10(元),

张、王家各应承担的个人住房房租:30×10=300(元),

李阿姨家应承担的个人住房房租:20×10=200(元).

公共面积的租费:1200-(300×2+200)=400(元),

平均每人的租费:400÷(3+3+2)=50(元),

张、王家各应承担的房租:50×3+300=450(元),

李阿姨家应承担的房租:50×2+200=350(元);

答:按每个家庭所摊的面积数的比承担房租比较合理,即张阿姨家应承担房租450元;王阿姨家应承担房租450元;李阿姨家应承担房租300元.

阅读理解

Wind is the great maker of waves. There are exceptions (例外), such as the tidal (潮汐的) waves sometimes caused by earthquakes under the sea. But the waves most of us know are caused by winds blowing over the sea .

Now let’s learn some physical (自然地理学的) things about it. A wave has height, from low point to high point . It has length (长度)--the distance from this high point to that of the following wave. The period of the wave means the time it takes for succeeding high points to pass a fixed point. None of these things stays the same--for all depend upon (依靠)the wind, upon the depth (深度) of the water and many other matters.

The water that makes up a wave does not advance with it across the sea. Each drop of water turns around in a little circle with the passing of the wave, but returns very nearly to its original position (原先的位置). And it is lucky that this is so. For if the huge groups of water that make up a wave really moved across the sea, sailing would be impossible. If we want to find the speed of a wave, we may use the following way : Speed =" wavelength" × frequency (频率).

Here, wavelength is the distance between two high points , frequency means the number of cycles per second

小题1:What causes waves?

A.Earthquakes and nothing else.

B.Only wind.

C.Wind causes most waves.

D.Wind causes some waves.小题2:Which of the following is TRUE according to the passage?

A.The water of a wave moves away across the sea.

B.The water of a wave remains almost at the same place.

C.The water of a wave goes with the passing of the wave.

D.The length of a wave means the distance from the top of a wave to the bottom.小题3:The speed of Wave 1 is 100 cm/s, frequency 10. The frequency of Wave 2 is 300, while its speed is twice that of Wave 1. Which of the following is right?

A.The wavelengths of the two are equal.

B.The wavelength of Wave 1 is 10 times longer than that of Wave 2.

C.The wavelength of Wave 2 is longer than that of Wave 1.

D.The wavelength of Wave 1 is longer than that of Wave 2.小题4:Where can we find this passage?

A.music magazine

B.fashion magazine

C.scientist magazine

D.sports magazine

单项选择题