On March 25, 2017, many people and public business across the city of Shenzhen turned off their lights for an hour at night and organized activities to mark Earth Hour, which aims to push environmental protection and support low-carbon (低碳) lifestyles.

Between 8:30 p.m. and 9 p.m., electricity use in the city was reduced by 144, 900 kWh, equivalent to (相当于) reduction of 47.39 tons of coal and 144.5 tons of CO₂.

As the clock drew close to 8: 30 p. m., Futian Shangri-la, Shenzhen also turned off some of the lights. An Earth Hour activity was held in the hall. The hotel also encouraged guests to join the global event by reducing the use of electric appliances (设备), including lights and air conditioners.

At the activity at Shangri-la, the hotel management invited guests to take part in a soap recycling activity. Guests were encouraged to make pieces of soap out of the used soaps that the hotel had collected from its rooms. The soap pieces will be given to communities that need them.

Many people turned off the lights at home and spent time with their family walking in the Lianhua Hill Park, while some running clubs organized their members to run for an hour to mark Earth Hour.

It is the ninth year since Earth Hour activities began to be held in China. Earth Hour is a global environmental event by World Wildlife Fund and is held on the last Saturday of every March. This year's event attracted millions of people from 170 countries around the world to express their worries about environmental protection and global warming problems.

【小题1】What is the aim of Earth Hour?

A．To encourage people to reduce the use of electric appliances.

B．To push people to go out of their home to exercise more.

C．To protect environment and have low-carbon lifestyles.

D．To recycle all kinds of products that have been used.

【小题2】To celebrate 2017 Earth Hour, the methods that Futian Shangri-la, Shenzhen took are ________. 
a. turning off some of the lights 
b. reducing the use of 47.39 tons of coal
c. holding an Earth Hour activity
d. encouraging guests to reduce the use of electric appliances

A．a, b, c

B．a, b, d

C．a, c, d

D．b, c, d

【小题3】Which of the following is WRONG according to the passage?

A．The city of Shenzhen saved at least 144, 900 kWh electricity use during this Earth Hour.

B．Many families in Shenzhen walked in the Lianhua Hill Park during this Earth Hour.

C．The members in some running clubs ran for an hour in Shenzhen during this Earth Hour.

D．Millions of people from 170 countries and regions joined this Earth Hour in Shenzhen.

【小题4】What's the title for the passage?

A．Earth Hour across Shenzhen

B．How much Earth Hour means to Shenzhen

C．Meaning of Earth Hour

D．When Earth Hour is celebrated