题目内容：

It is a country, in northern Europe. It is home to Santa Claus and the game Angry Birds. And it was recently said to be the world's happiest country. It's Finland（芬兰）!

According to this year's United Nations World Happiness Report, Finland topped 156 countries and regions to get the title of the world's happiest country. The ranking（排名）considers six key factors（因素）—income（收入）, freedom, trust, healthy life expectancy（预期健康寿命）, social support, and generosity（慷慨）.

What made Finland stand out? Why are its 5. 5 million people so happy?

One reason is the country's history of equality（平等）, the Guardian reported. The Finnish government has worked hard to reach a balance between men and women, workers and bosses, and foreigners and locals.

Finland successfully cut the size of its homeless population between 2014 and 2016. The lifestyles of the rich and poor in Finland are not too different, The Economist noted.

Making sure of equality encourages people to build trust, over 80 percent of Finns trust the country's police, education and healthcare systems. People there live in a pleasant and safe environment.

The Finns also have a positive attitude（态度）toward life. There is a word that describes this attitude—"sisu". It means the ability to stay strong during difficult times. This helps the Finns deal with stress and worry, as well as keeps them happy and energetic.

1.The best title to describe the main idea of the passage is “__________”.

A.Home to Santa Claus B.Keep happy and energetic

C.Find joy in Finland D.Enjoy safe environment

2.How many key factors does the ranking about the world's happiest country consider?

A.Three. B.Four. C.Five. D.Six.

3.One of the reasons why people in Finland are so happy is that__________.

A.they got the title of the happiest country

B.men and women have the same work

C.the Finnish government has worked hard

D.Finland owns the history of equality

4.The writer seems to tell us that Finland spent about three years in__________.

A.reducing the number of the homeless successfully

B.reaching a balance between workers and bosses

C.topping 156 countries and regions

D.making people live a pleasant life.

5.The Finnish people's attitude toward life during difficult times is __________.

A.to feel stressed B.to keep strong C.to be worried D.to stay healthy