1 .

A．The harm done by single-use plastics.

B．The topic for the woman’s composition.

C．Environmental issues.

D．Some recent hot news.

2 . We should all have at least one fire extinguisher somewhere in our home, but it’s not enough to simply keep one under the kitchen sink. If there is a fire, your safety — and the safety of your home — depends on knowing how to use that fire extinguisher correctly. In case your fire extinguisher has been sitting around collecting dust, here’s everything you need to know before brushing it off and fighting a fire in your home the right way.

Choose the right fire extinguisher

The first thing you need to know is the different classifications of fires. Most household fires fall into one of the following categories:

Class A: Fires fueled by solid combustibles like wood, paper, and cloth.

Class B: Fires fueled by flammable liquids such as oil and gasoline.

Class C: Fires started or fueled by faulty wiring and appliances.

Class D: Fires started or fueled by cooking oils, animal facts, and vegetable fats.

All fire extinguishers are labeled to indicate which classes of fire they are designed to combat. Most household fire extinguishers are considered multipurpose and labeled for use in A, B, and C classes. Class K extinguishers are heavier duty and will need to be bought separately. Household fire extinguishers are also rated for the size of fire that they can safely handle. The higher the rating, the larger the fire the extinguisher can put out. Higher-rated extinguishers are often heavier.

Steps for proper extinguisher use

Once you understand the different types of fire extinguishers and their uses, you need to be able to properly operate one.

Step 1: Identify a clear exit/escape route

Before operating the fire extinguisher, make sure you have a clear evacuation path. If you cannot put out the fire, you’ll need to make a safe exit. Also, make sure everyone else is being evacuated from the building.

Step 2: Call the fire department

Even if the fire appears manageable, you should always have the fire department on the way. Once firefighters arrive, they can double-check whether the fire has been completely extinguished.

Step 3: Stand back

Face the fire and keep your back to the clear exit. You should stay between 1.8 and 2.5 meters away from the flames as you prepare to operate the fire extinguisher.

Step 4: Operate the extinguisher

It can be difficult to think clearly during an emergency. Thankfully, there is a long-standing acronym(首字母缩略词)— PASS — to help you recall the steps involved in operating your fire extinguisher.

P: Pull the pin (保险销) on the fire extinguisher.

A: Aim low. Point the nozzle at the base of the fire instead of the flames.

S: Squeeze the handle or lever to discharge the extinguisher.

S: Sweep the nozzle back and forth until the flames are extinguished.

Step 5: Keep an eye on things

After the flames appear to be out, continue to watch the fire area to make sure it doesn’t reignite. If the fire does start up again, repeat the “PASS” process.

Step 6: Get to a safe place

Once the fire is out, or if you are unable to put it out, leave the scene. Find a place out of reach of the fire.

1. According to the passage, what is the top priority in a fire emergency?

A．Find out how to escape.	B．Operate a fire extinguisher.
C．Call the fire department.	D．Escape and leave everything behind.

2. The following pictures show the four steps of the “PASS” process. According to the passage, what is their correct order?

A．③②④①	B．④②③①
C．③④①②	D．④③①②

3. According to the passage, after a fire appears to have been extinguished, we should _________.

A．leave the fire area at once	B．repeat the “PASS” process
C．inspect the fire area carefully	D．have the fire department on the way