1 . Optimism (乐观) doesn’t mean paying no attention to things that cause stress. But when bad things happen, optimistic people are less likely to be unhappy about themselves and more likely to see the bad things as something that lasts a short time.

A new research has found a direct connection between optimism and healthier diet and exercise behaviors, as well as better heart health, a stronger immune system (免疫系统), better lung function, and lower death risk. “Optimistic people, regardless of sex, often have goals and the confidence to reach them,” Lee said. “Those goals could include healthy habits that contribute to a longer life.”

Studies find only about 25% of our optimism is controlled by our genes (基因), and the rest is up to us. It turns out we can actually train our brain to be more positive. Researchers studied the brains of monks (僧侣) and found surprising results: Tens of thousands of hours of meditation(冥思) had changed the function (机能) of their brains, which support positive qualities. And that may be key in producing the effect on the body.

There are simple mental exercises to develop an optimistic attitude. One of the most effective ways to increase optimism is called the “Best Possible Self” method. That is to imagine ourselves in a future in which we have achieved all our life goals. And keeping a diary in which we list the positive experiences we had can also help shape our attitude. Taking a few minutes each day to write down what makes us thankful can improve our view on life, too.

1. What is the meaning of Lee’s words?

A．Goals can lead to confidence.

B．Better lung function lowers death risk.

C．Optimism is connected with length of life.

D．Sex should be taken into consideration when studying optimism.

2. Why are the brains of monks studied?

A．To lengthen their life.

B．To improve their brains’ function.

C．To prove optimism can be learned.

D．To show genes’ connection with optimism.

3. What is the last paragraph mainly about?

A．How to be a positive person.	B．How to make people thankful.
C．What to write about in a diary.	D．What to do to achieve the goals.

4. Where is this text most likely from?

A．A science magazine.	B．A guidebook.
C．A novel.	D．A diary.

2 . Reducing, reusing, and recycling is a way of life in Sweden. Recycling is required by law and garbage is sorted at home before if goes to a recycling center. Recyclables are sorted into seven categories and recycling stations are within just 300 meters of all residential areas. " Recycling almost everything is a must in Sweden now. It actually feels very uncomfortable when you visit another country and cant find easy ways to recycle, " said Owen Gaffney, an expert at Stockholm Resilience Centre and Future Earth.

But not all of its garbage is recycled. Sweden uses alternatives that include incineratinggarbage to make electricity instead of using fossil fuels（化石燃料）to heat 1.2 million homes. About half of household garbage   is sent to one of the 33 waste﹣to﹣heat plants. Sweden is importing garbage from other countries to keep these plants running. Sweden is also a world leader in turning food waste into eco﹣friendly biogas（沼气）. It has made food waste collection compulsory beginning in 2021. There is a food waste biogas plant, which allows biogas to be used to run public buses and to heat apartment buildings.

Sweden now wants to deal with those remaining items that cannot be recycled by using a circular（循环论证的）economy approach. It means that products can be reused and only recycled when absolutely necessary. The Swedish government formed an advisory group to find a way of making this part of its environmental policy.

This will not work effectively unless people are taught to change their behavior. Now the government is reforming its tax code so that people could get cheaper repairs or buy used things. The large Swedish clothing retailer（零售商）H&M operates a recycling program that gives customers discounts when they bring back old clothing.

Sweden is fighting climate change by doing all the right stuff. Waste recycling and the plans to switch to a circular economy will go a long way in reducing its carbon footprint and will help stop global warming.

1. What do we know about Sweden？

A．Sweden imports household garbage for biogas.

B．It is convenient to recycle things in Sweden.

C．Half of garbage in Sweden is used to produce heat.

D．Everything is recycled after being used in Sweden.

2. What does the underlined word in paragraph 2 mean？

A．Burning.

B．Treating.

C．Throwing.

D．Reusing.

3. What does the advisory group do？

A．Teach people how to save fossil fuels.

B．Conduct a survey about the local economy.

C．Offer advice on environmental policy.

D．Make sure the citizens recycle wisely.

4. How does the government encourage its citizens to reuse？

A．It provides various recycling programs.

B．It cuts down taxes on new products.

C．It gives discounts to regular buyers.

D．It offers lower prices for repairs.