1 . To understand why humor is a kind of super food for the brain, you should know humor helps to know what our brains long for in the first place. You might think brains would prefer when we sit alone in a room and stare at a white wall—we don’t burn up much energy doing that. But the brain is like a muscle, and it needs exercise. What gives the brain a workout? Information. Humorous messages work best. When researchers asked people to look at a series of pictures while their brains were being scanned in a machine, it was the more complex pictures—a work of art, a group of animals that excited the neurons (神经元) in their heads most.

It’s the activity of those neurons, which, among other things, send and receive sensory information that “lights up” the scans in bright colors. In fact, there is an almost druglike effect taking place. The brain is filled with drug receptors (受体). Made of specialized proteins, these receptors stuck out of our neurons to pick up passing signals. The more neurons that are activated, the more pleasure we feel. In reality, learning and problem solving get us high as much as humor does.

Experts think that humor might feed the brain in much the same way that complex information does. People who study humor generally agree that most jokes are built around an improper, funny, surprising, or unusual combination of two basically different ideas. Humor has such great magic that we can develop it. We might as well start by telling jokes.

1. What can excite the brain neurons most?

A．Emptying the brain.	B．A work of art.
C．A very simple picture.	D．Staring at a white wall.

2. What do we know about drug receptors?

A．They can receive signals.	B．They are machines.
C．They are electronic products.	D．They can respond to proteins.

3. How can we make ourselves feel more enjoyment according to the text?

A．By ignoring problems.	B．By eating enough food.
C．By making more neurons active.	D．By taking more artificial drugs.

4. What is the text mainly about?

A．The function of the human brain.	B．The effect of pictures on the brain.
C．The benefit of humor for the brain.	D．The importance of ideas in jokes.

2 . According to the study posted on ScienceDirect, gardening just two to three times a week increase the benefits of better well-being as much as possible and lower stress levels.

The research explored why residents engaged with gardening and the extent to which they recognized any health benefits from the activity.

A questionnaire was handed out electronically within the UK, with 5,766 gardeners and 249 non-gardeners responding. Data was collected on factors including garden typology（类型学）, frequency of gardening and individual awareness of health and well-being.

"This is the first time the dose response（剂量效应）to gardening has been tested and the evidence from the survey strongly suggests that the more frequently you garden, the greater the health benefits," said Royal Horticultural Society (RHS) lead author Dr Lauriane Chalmin-Pui. In fact, gardening every day has the same positive impact on well-being than undertaking regular and powerful exercise like cycling or running.

When gardening, our brains are pleasantly entertained by nature around us. Gardening takes our attention away from ourselves and our stresses, therefore, it helps restore our minds and reduce unfavorable feelings.

Improving health, however, was not the main motive power to garden, but rather the direct pleasure gardening brought to the participants.

"Gardening is like effortless exercise because it doesn't feel as exhausting and hard as going to the gym, for example, but we can expend similar amounts of energy," Chalmin-Pui added.

Most people say they garden for pleasure and enjoyment, so people who like gardening may be easy to be addicted to it. However, this sometimes may become a piece of good news, from the aspect of mental health. "We hope all the millions of new gardeners will be getting their daily gardening and feeling all the better for it. " Chalmin-Pui said in the interview.

1. What can be inferred about gardening from the survey?

A．Improving health is the aim of the participants.

B．Gardening makes no difference to health.

C．Health benefits from frequent gardening.

D．Too much gardening always does harm to health.

2. What does the underlined word "expend" mean in paragraph 7?

A．Consume.

B．Make use of.

C．Increase.

D．Save.

3. Why do so many participants like gardening?

A．It isn't exhausting.	B．It is good for health.
C．It brings pleasure.	D．It is like going to the gym.

4. What is Chalmin-Pui's attitude to the new gardeners' gardening?

A．Carefree.

B．Supportive

C．Tolerant.

D．Indifferent.

3 . Have you ever left a place knowing you have “visited” all the attractions in the guidebooks ,but feeling like you know no more about it than before you visited it? One way to make your travels more memorable is to seek out local food, people and activities.     1     Here are some detailed ways to experience local culture during traveling.

Taste local food.

When we travel to a new environment, our senses are excited by the sounds, smells and tastes. Food is no longer just a necessity to maintain life — it's a tale and even a custom.    2     Try local food instead, and you may encounter food that you will never forget.

Stay with locals.

    3     However, compared to that, a local's home is where you'll find everyday displays of deep local culture and values, as well as meaningful connections with people who are just like us. For most of us, what we remember most about our travels probably are the conversations with strangers and, sometimes, newfound friends.

Go on cultural tours.

There's no better way to learn about a place than from locals. Some cities have free tours where local guides will take you on a tour of a city while sharing fascinating facts.     4    That's because extra reward will get the tour guide to give you extra service.

Context Travel, which is a small-group cultural tour led by scholars, is also a great choice.

    5    .

The best way to explore a destination is on foot. The second-best way is by public transportation. When you go slow and let yourself wander, it's no longer a task to get from Point A to Point B — all the sights around you will become an unforgettable ink drawing in your mind.

A．Draw it in your mind.

B．A hotel may be comfortable.

C．All you have to do is tip them.

D．Walk or take public transportation.

E．They welcome you into their homes.

F．By doing so, you'll learn more about a place.

G．So stop going to the fast food chains you're familiar with.