书面表达

    今天是周日，Emily的妈妈为她制定了一个家务劳动表，她完成得很好。请根据下表写一篇英语短文，描述一下Emily的家务工作，并且呼吁大家帮助父母分担家务。要求70词左右(开头已给出，不计入总词数)，内容可作适当发挥。

  Today is Sunday．Emily’s mother made a chore chart for her．Let’s look at what she did today．

任务型阅读

    Traveling abroad during the vacation is the top choice of many Chinese people. But do we have good manners abroad?

    On Feb 25, a report said that a Chinese mother let her child pee (小便) in front of a shop in Tokyo. A journalist came to the mother. Instead of saying sorry, the woman said that her child had peed inside a plastic bag and had not made the floor dirty.

    This case has caused a big discussion about Chinese people' s traveling manners again.

    In recent years, improper behavior has become a real embarrassment for China as overseas tourism increases. With the improvement of living standards, more and more Chinese are traveling abroad. But there are still a number of Chinese lacking in (缺乏) a sense of public manners. For this situation, the Chinese government has suggested proper manners. The National Tourism Administration has made a list of tourists' worst behaviors, including littering, line-jumping, taking off shoes and socks in public, speaking loudly and smoking in non-smoking areas.

    We are going to improve the inner being of every Chinese citizen. “Traveling manners are a turning point.” said an official. And changes have begun to appear. Most people minded their behaviors during this Spring Festival holiday, according to the National Tourism Administration. They kept their voice down, waited in line and respected local rules.

在图甲所示的电路中，电源电压为6V且保持不变，电阻R₁的阻值为30Ω。同时闭合开关S和S₁，电流表的示数如图乙所示。求：

（1）通过电阻R₁的电流；
（2）电阻R₂的阻值；
（3）在10s内，电流通过电阻R₁产生的热量；
（4）电阻R₁与电阻R₂工作时的电功率P₁和P₂之比。