1 . A couple of years ago, I learned this lesson. That day, I took a taxi to Grand Central Station. We were driving in the right lane when, all of a sudden, a black car jumped out of a parking space right in front of us.     1    

The driver of the other car, the guy who almost caused a big accident, got out of his car and started yelling bad words at us.     2     And I mean he was friendly. So, I said, “Why did you just do that? This guy almost ruined your car and sent us to the hospital! That was when my taxi driver told me what I now call: the law of the garbage truck.

    3     They run around full of garbage, full of frustration, full of anger, and full of disappointment. As their garbage piles up, they need a place to dump it, and if you let them, they’ll dump it on you. When someone wants to dump their problems on you, don’t take it personally. Just smile, wave, wish them well, and move on.     4    

I started thinking: how often do I let garbage trucks run right over me? And how often do I take their garbage and spread it to other people?     5    

What about you? What will happen in your life if you let more garbage trucks pass you by? Life is too short to wake up in the morning with regrets.

A．We will surely to do that again.

B．You will be happy at what you did.

C．And it is twice as far from my home.

D．Many people are like garbage trucks.

E．The taxi driver just smiled and waved at the guy.

F．That day I said, “I’m not going to do that any more.

G．The taxi driver slammed (猛踩) on his brakes and missed the other car’s back end by just inches!

2 . With people wearing face masks to protect themselves from being infected with the novel coronavirus, a concern now is how they are dealing with their used masks. As used face masks may carry the coronavirus, they shouldn't be carelessly thrown away as waste. Since the virus can survive for one or two days in wet conditions, the used masks may become a new source of infection.

Given that the garbage sorting has recently been carried out in only a few cities, mixed waste commonly exists. The mixture of polluted masks and recyclable waste may cause a possible danger to rubbish collectors when they put hands in the garbage cans to collect recyclable items. What's worse, if someone just throws a used mask on the street, someone might pick it up, or try to collect it to sell second-hand.

With the spread of the novel coronavirus, there has obviously been a high demand for protective equipment such as face masks among ordinary people, with the resulting generation of a huge quantity of what may be considered medical waste. Thus, the problem is how to deal with this mass of medical waste, particularly the used face masks outside of hospitals. Communities should have special trash cans around to collect used masks. If these are not provided, people should put the waste into plastic bags before casting them aside, so they are not exposed to the air.

As the main risk of medical waste is infectivity, disinfection, whether by steam, chemicals or microwave, is very important. According to regulations, only licensed companies should collect, transport and do the final management of medical waste. For example, medical waste must be collected in special containers,and be transported in special vehicles by qualified people.

1. What problem is described in paragraph 1?

A．Used masks may cause infection.	B．Used masks are difficult to recycle.
C．The virus spreads quickly in wet conditions.	D．The novel coronavirus infection is worsening.

2. What is paragraph 2 mainly talking about?

A．The causes of sorting garbage.	B．The ways of recycling used masks.
C．The harm of using second-hand masks.	D．The risk of handling used masks improperly.

3. What do the underlined words "casting them aside" in paragraph 3 probably mean?

A．Destroying rubbish.

B．Throwing waste.

C．Marking rubbish.

D．Reusing waste.

4. What can we infer from the last paragraph?

A．It costs a lot to collect and transport medical waste.

B．The hospital infection is mainly from medical waste.

C．The rules of dealing with medical waste are very strict.

D．License companies should be responsible for infection.