早教吧作业答案频道 -->英语-->
OnApril20th,2013,abigearthquakehitYa’an,Sichuan.Nearly200peopledied.Manypeoplewerehurt.Whydoearthquakeshappen?Thesurface(表面)oftheearthhasmanypieces.Thesepiecesarealwaysmoving.Whentwopiecesmovepasteach
题目详情
On April 20th,2013, a big earthquake hit Ya’an, Sichuan. Nearly 200 people died. Many people were hurt. Why do earthquakes happen? The surface(表面) of the earth has many pieces. These pieces are always moving. When two pieces move past each other, there is an earthquake. Scientists are working hard to find out more about earthquakes. They try to predict(预测) them, but it’s very hard. Do you know how to get ready for an earthquake? Do you know what to do during an earthquake? Here are some things you should know. What to do before an earthquake Make sure you have two bottles of water, a packet of biscuits, a clean towel , a few band-aids(创可贴), a radio and a flashlight(电筒)at home. What to do during an earthquake If you are inside: ★Stay where you are. Quickly move under a strong desk, or along a wall. This will protect you from falling things. ★Don’t stand near windows. ★Turn off the lights. ★Don’t get into a lift during an earthquake. If you are in a lift, get out quickly. If you are outside: ★Don’t stand near buildings. Things may fall on you. ★Lie on the ground until the shaking stops. 小题1:An earthquake hit Ya’an .
|
▼优质解答
答案和解析
小题1:B 小题2:D 小题3:A |
|
看了 OnApril20th,20...的网友还看了以下:
圆锥底面周长把一个圆锥分成若干层,每层厚度一样,且每层切面为圆.设其中一层下表面周长为A1与其相邻 2020-05-14 …
OnApril20th,2013,abigearthquakehitYa’an,Sichuan.N 2020-05-17 …
n表示任意一个自然数,则任意一个偶数可表示为An十2Bn十1C2nD2n十1任意一个奇数可表示为A 2020-06-03 …
将正方体表面全部图上颜色,将正方体的棱三等分,然后沿等分线将正方体切开,得到27个小正方体,我们将 2020-07-09 …
注:A(n+1)代表数列{An}的n+1项,其他的以此为依据.1.设数列{an}的前n项和Sn,且 2020-07-09 …
已知递推公式An=n*A(n-1)+(n-1)!,求An可以写成其他形式吗?不用阶乘,而用关于n的 2020-08-01 …
已知有穷数列{an}:1,12,123,1234,12345,……,123456789(在每一项的 2020-08-01 …
由基本不等式(a+b)/2≥√(ab)可以拓展到:若实数a1,a2,a3.···an均为正数,则有 2020-08-03 …
为什么在表示一个R的时候前面用an而不用a?例如:GivemeanR.这个句子中为什么不用a表示一个 2020-10-30 …
设A1=2,An+1=1/2[An+(1/An)],求An是否收敛?注:不会弄下标,所以小写代表下标 2020-11-18 …