1 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

In a recently conducted study, researchers have found that the Chinese martial art of Tai Chi could slow down the progression of Parkinson’s (帕金) disease by years.

Tai Chi, with its slow, meditative (冥想的) and deliberate movements,     1     (know) to benefit physical and mental well-being. Doctors from the Shanghai Jiao Tong University School of Medicine conducted a five-year study on people with Parkinson’s disease     2     (explore) the effect. The researchers discovered that the condition progressed     3     a slower rate in those who practiced Tai Chi. They observed fewer falls, and less dizziness and back pain in the Tai Chi practitioners. The researchers also noted that the cognitive (认知) function of the test     4     (participant) who regularly practiced Tai Chi faded more     5     (slow).

Parkinson’s disease is a brain disorder     6     affects the nerves and muscles. It progressively     7     (cause) unintended or uncontrollable movements, such as shaking, stiffness, and difficulty with balance and coordination. People with Parkinson’s may eventually have difficulties walking and talking. One of     8     most famous people with Parkinson’s was the heavyweight boxing champion Muhammad Ali. The researchers suggested that doing Tai Chi could keep symptoms of Parkinson’s at bay for years. They said, “The long-term     9     (benefit) effect of Tai Chi on Parkinson’s could prolong the time without disability,     10     (lead) to a higher quality of life, a lower burden for caregivers and a reduction in drug use.”

3 . When you eat a traditional ice cream in the summer, you need to finish it quickly to make sure the treat doesn’t end up melting down your hand. Reach for an ice cream sandwich instead, and the ice cream seemingly stays solid longer magically. An ice cream that refuses to melt seems unnatural, but you might be surprised by what’s really behind its practically heat-proof (耐热的) abilities.

Ice cream without a container in the freezer would inevitably lead to ice blocks because of its water content. Most packaged ice cream-whether it’s in a cone or sandwiched between two cookies-contains some elements called emulsifiers (乳化剂) that can keep water to fat to prevent ice blocks. They go a step further by helping to keep ice cream consistent, even under the hot sun. On an element list, you might find different chemicals with the same goal: to hold water in so the ice cream doesn’t melt quickly. Ice cream sandwiches generally contain more of those chemicals than hand-made ones.

If you’re worried about those elements, and some additives (添加剂) might create images that belong to a lab rather than your kitchen, then you’d better be at ease. Even natural ingredients (成分), which come from beans, might give you pause if you’ve heard about their use and misuse in weight-loss efforts.

Of course, the Food and Drug Administration (FDA) takes any of the side effects of those chemicals into account, and the amount you’d find in an ice cream sandwich isn’t enough to cause health problems. While we meet someone willing to share their ice cream cookies with us, there ‘s no reason to fear your kids’ safety if they want to enjoy a store-bought treat. A slow melt rate method causes you less cleanup.

1. What’s the main function of the emulsifiers in ice cream sandwiches?

A．To cover the ice cream so that it avoids sunlight.

B．To make the ice cream sandwiches taste better.

C．To make the ice cream stay in the cookies longer.

D．To protect the ice cream by keeping water out.

2. The author mentions natural ingredients from bean: mainly to show __________.

A．natural ingredients can sometimes be dangerous

B．the elements in ice cream are actually harmless

C．emulsifiers in ice cream can make people fat

D．additives should be avoided in losing weight

3. Which of the following shows the author’s opinion on kids’ eating ice cream cookies?

A．Replace the cookies with something natural.

B．Restrict the amount of the cookies.

C．Feel easy to give kids permission.

D．Gently refuse the kid’s request.

4. What does the passage mainly talk about?

A．The side effects of ice cream sandwiches.

B．The food to melt down your hand in hot summer.

C．The methods of avoiding ice cream.

D．The elements behind your ice cream cookies.

4 . He really did look like a tourist, with a camera around his neck and a bottle of sunscreen cream sticking out of his bag. The fat man sat on the terrace (平台), sipping lemonade and pretending to look at a tourism brochure. His sunglasses masked his eyes, but I knew he wasn’t looking at the brochure: he hadn’t turned a page for the last ten minutes. As I brought him his dishes, he coughed up a “thank you” and looked at me briefly. I tried not to stare at the tiny scar across his left eyebrow.

I walked back inside with my empty tray (托盘), shaking my head. He looked familiar, but I couldn’t quite place him. Then it hit me. The car accident. The mysterious stranger who helped me out of my crashed car, just before it exploded. I rushed back to his table. He was gone.

I moved his saucer and found his tip, along with a card: I am deeply grateful to you. The night of your car accident, I was on my way to rob a jewelry store. Saving your life brought things back in a right way. I now live an honest life, thanks to you. God bless you! Mr. D.

I shivered (颤抖). The night of my car accident, I was heading for an interview in an illegal dance club. Seeing human kindness through his heroic gesture turned my life around and brought faith back into my life. I unfolded the tip he left. Among the singles was a grand (一千块) with a pen mark underlining “In God We Trust.” I said a silent prayer for him and got back to work, smiling.

1. Why did the fat man look like a tourist?

A．Because be used money n it the same as the locals.

B．Because he carried what tourists usually have on.

C．Because he doesn’t look like a native citizen.

D．Because he ordered strange food and drinks.

2. How did the writer knew the man didn’t read the brochure?

A．He was drinking all the time.

B．He sat still with his sunglasses.

C．The page remained unturned.

D．He was staring at the writer.

3. What can we infer from the last paragraph?

A．They kept in touch with each other since then.

B．The writer had been searching for the man.

C．The man became a rich man years later.

D．The writer didn’t go to that interview.

4. What is their attitude towards each other?

A．Sympathetic.

B．Grateful.

C．Worried.

D．Trusty.

6 . A new study reports that a mosquito’s sense of smell is more complicated than we once thought. And it may explain why this annoying insect is so good at seeking you out at a barbecue or in your bedroom and biting you — as well as lead to new strategies to prevent the potentially deadly diseases transmitted by its bite.

Meg Younger, a neuroscientist at Boston University, is co-author of the study. She exhales (呼气) gently into one of the mosquito-filled cages. A waft (股) of carbon dioxide blows across the insects, and they go wild. “And now, they’re looking for a target like the complex mixture of human body smell — a smell that’s attractive to the mosquitoes,” Younger explains.

In many parts of the world, this attraction isn’t merely an annoyance for humans. It’s a major health problem. Mosquitoes transmit diseases to humans. These diseases include dengue, Zika, chikungunya fever and malaria. The last disease alone causes over half a million deaths each year.

So scientists have attempted to break this attraction. But try as they might, the little mosquito has resisted. “They’re really good at what they do,” Younger says. Most of what we know about the neuroscience of smell comes from mice and fruit flies, where the wiring is fairly simple. Each neuron (神经元) in the nose has one kind of receptor (感受器) that detects a single kind of smell — say, a banana. And all the neurons with receptors for the banana smell connect to the same part of the brain. Younger and the others studied mosquito brains, where she found that each neuron has multiple receptors that can detect multiple smells.

This work could give researchers additional ways to battle the insects like developing traps that contain new smell mixtures that are more appealing than people.

“It’s an enormous study,” says Josefina del Marmol, a neurobiologist at the Harvard Medical School. She says there’s more work to be done to check, neuron by neuron, that each one actually responds to all the smells it has receptors for. But regarding the central finding, she says, “It really does change a lot about what we know of how insects perceive the world.”

1. Why does Younger exhale into a mosquito-filled cage?

A．To see if breath contributes to disease transmission.

B．To confuse the experimented mosquitoes.

C．To experiment on mosquitoes’ sense of smell.

D．To keep targeted mosquitoes alive.

2. How do mosquitoes differ from fruit flies?

A．They have a clearer smell mechanism.

B．They have more neurons to detect smells.

C．They have bigger brain parts focusing on smell.

D．They have more smell receptors in each neuron.

3. What is the significance of the study?

A．It inspires new methods to prevent mosquito bites.

B．It may have found an ideal way to study insects.

C．It proves the previous assumption about mosquitoes.

D．It sheds light on how mosquitoes transmit diseases.

4. What does Josefina del Marmol think of the research finding?

A．It has many weaknesses.	B．It is a big step forward.
C．It is far from impressive.	D．It has a worldwide influence.

7 . While tea may have originated in Asia, now there are many countries all around the world that have tea woven into their food culture and traditions. This is one of the very special parts of tea as it has a way of connecting people all over the world in different ways and ceremonies that finally all results in a group of people sitting together and enjoying a cup of tea.

Chinese tea culture

Since China is viewed as the birthplace of tea, it is no wonder that Chinese tea culture is rich with history and tradition. Today, Chinese tea continues to be used in Chinese medicine and is commonly consumed on both casual and formal occasions both for personal enjoyment and to represent Chinese cultural traditions.

Japanese tea culture

Japan also has a long history with tea,especially Japanese Matcha, which is a kind of ground green tea that is commonly used in Japanese tea ceremonies and only in recent years became popular in Western culture.

British tea culture

When many people think about tea, British tea culture is what comes to mind. A hot cup of English Breakfast or Earl Grey tea serves with a little milk and a biscuit in the afternoon as a pick-me-up for the day. Even though tea may not be native to England, this British tea tradition is still going strong today.

Moroccan tea culture

When you visit Morocco, it is hard to miss the outstanding tea culture that is such a large part of Moroccan hospitality. Before any gathering, negotiation, or sale of a product, a pot of mint tea is always prepared and served among the host and guests. This is an expression of Moroccan tradition and hospitality, which should always be accepted by guests as a sign of appreciation and respect to the host.

1. Why can tea find its way into various food cultures?

A．It originates in Asia.	B．It forms different ceremonies.
C．It gets people connected easily.	D．It allows people to sit together.

2. In which country may a cup of mint tea be served before negotiation?

A．China.

B．Japan.

C．Britain.

D．Morocco.

3. In which column (专栏) on social media may the text appear?

A．Healthy You.

B．Social Insight.

C．Cultural Corner.

D．Itchy Feet Travel.

9 . 听下面一段较长对话，回答以下小题。
1. How does the woman probably feel?

A．She feels that the man is strange.

B．She feels embarrassed.

C．She feels excited.

2. What will happen after the man makes the phone call?

A．He will be sent an email.

B．He will receive some money.

C．He will be given more information.

3. What will the man do next?

A．Leave for the bathroom.

B．Get on a train.

C．Change seats.

10 . What does the man want to do tonight?

A．Watch football on TV.

B．Buy some books.

C．Go to a basketball game.