题目内容：

    Nowadays people tend to digitalise everything from watches to fridges. It seems you can choose any item labeled as “smart”. 1. However, there are plenty that can be used to reduce emissions and save money.

If you’re a part of the digitalisation movement，you might be interested in the concept of smart homes. It means that every element of your house can be controlled from a panel on the wall or your phone.2. Use your mobile to power them on or off，and you may feel truly modern or truly lazy. Asides from the benefits of living a more comfortable life, this presents an opportunity to cut down on your electrical bills.

Electricity generation today represents 31% of total global fossil fuel use and around 40% of all energy-related CO2 emissions.3. It is considered as the first step to prevent global climate change. Connect a smart thermometer to the heating and cooling system and set a specific temperature at which the heating begins to work. Doing so, the room will be at a desired temperature when necessary and switches on a power-saving mode when not occupied. Similarly, by installing a CO2 sensor, you can have an automated ventilation (通风) system.4..

In a 150,000m2 office complex near Munich， called Campeon, energy costs of up to 117,067 Euro were saved after the use of environmental control devices this year. In this way, they are contributing to a large decrease in CO2 emissions. Clearly, smart homes are about much more than just living a comfortable life.5..

A. It is actually about living a green life.

B. Smart devices have been installed worldwide nowadays.

C. It starts working only when CO2 concentrations reach a certain limit.

D. There seem to be an ocean of such so-called “smart” inventions.

E. Bearing this in mind, measures should be taken to make buildings more energy-efficient.

F. Alternative energy must be discovered before the fossil fuel runs out in the future.

G. This includes basics such as heating and lighting and many other appliances.