A smile shows that a person is happy. For example.a person may smile when he or she is pleased with a grade on a test. Or a person might smile if a friend tells a funny joke. People Smile for many different reasons. But smiles are more than just a way for people to show that they are happy.
First, it is easier to smile than to show unhappiness. In fact, it only takes 17 muscles（肌肉）to smile. On the other hand, it takes 43 muscles to show unhappiness.
Third, smiles have power. Both smiling and laughing can easily and quickly spread from one person to another. If one person smiles, people around him or her want to smile, too. Similarly, when a person laughs, people tend（倾向于）to laugh with him or her.
Finally, smiling and laughing are very good for the body.
| A．Second, smiles are nice. |
| B．Even if you are mad or sad, try smiling. |
| C．You tell a story about smiles. |
| D．So give the muscles in your face a rest and smile! |
| E．If a person is sad, the best thing to do is share a smile or laugh. |
| F．There are other good reasons to smile often. |
| G．When someone “lost face”, he or she smiles to hide it. |
相似题推荐
Anger is a kind of feeling.
In fact, it’s not good to hide your anger, and it’s normal for you to get angry sometimes.
When you are angry, how you act can make everything better or worse.
| A．But anger must be let out in the right way, without hurting others or yourself. |
| B．So, don’t let your anger control you. |
| C．As soon as you find your problems, you may try to relax. |
| D．Usually, your body will tell you when you are angry. |
| E．After doing that, you’ll find the bad feeling can start to go away. |
| F．Many things can make you angry. |
【推荐2】No one wakes up feeling happy every day. Very happy people are not different. They never stop trying to be happy. Here are some of the habits of happy people.
They slow down.
Sometimes we think too much.
Getting your body moving for as little as 10 minutes can make you happy. Happy people exercise regularly and follow through on it because they know it will help them get in good mood (情绪) and stay in good mood.
Research shows that spending money on others makes you much happier than spending it on yourself. This is especially true of small things that show effort, such as going out of your way to buy your friend a book that you know he or she will like.
They get enough sleep.
They have deep conversations.
Happy people know that happiness and depth go handinhand. They avoid saying mean things about people.
阅读短文， 从方框内六个选项中选出能填入文中空缺处的最佳选项。
| A．They exercise. |
| B．Happiness makes you creative. |
| C．We don’t have time to look around. |
| D．Instead, they focus on meaningful relationships. |
| E．When you sleep, your brain restarts and cleans itself. |
| F．They spend money on other people. |
Treasured acts of kindness
When the whole nation stands together to fight the novel coronavirus（新型冠状病毒）, we can see many unforgettable moments that warm our hearts. Take a look at some of them!
A Staying active through dance | B Delivering around the city | C Stopping the spread in Hebei |
| D | E | F |
 |  |  感谢祖国！ |
祖国万岁！ | ||
New Zealand sends its love | Helping to save fellow sufferers | Back to China |
2. Doctors lead patients to dance through daily exercise in Wuhan’s largest cabin hospital on Feb. 15. This activity helps improve their moods.
3. Zhang Zhengle, a 31⁃year⁃old man who has recovered from the novel coronavirus pneumonia, donates plasma（ 血 浆 ）at Hubei General Hospital to help the currently infected（被感染的）patients.
4. Wu, 39, returned to Wuhan to work as a food delivery driver for Meituan. Since Jan. 23, he has delivered over 300 takeout orders around the city. In fact, he delivered not only daily necessities but also hope.
5. A family from Wellington, New Zealand shows support for China’s epidemic（疫情） prevention and control efforts on Feb. 15. “Kia Kaha!” means “Stay strong!” in Maori language.
【推荐1】Spatial (空间) learning is an important skill in the animal kingdom. This is because it helps animals find food when it’s not easily available. Insects such as bees and ants are known to do this.
A recent study has found that the butterfly also has ability of spatial learning. This butterfly comes from South and Central America. And it’s known for different types of wing patterns.
In the study, the research team carried out spatial learning experiments on butterflies under three different spatial conditions. First, they tested the insect’s ability to learn the location of real food in a 1-square-meter space made up of 16 fake (假的) flowers. This test represented (代表) searching for food in a single area.
The team then increased the distances again. They used large outdoor cages (笼子) to test if the butterflies could learn the location of food in a 60-meter-wide maze. This maze looks like the letter T. This test represented searching for food in the wild. This was closer to the conditions in which the insect finds food in the wild.
The experiments on butterflies show signs of spatial learning-they can remember the spatial location of their food. In the future studies, the team plans to test if they are better at spatial learning than closely-related species (近亲物种).
1. Why is spatial learning important to animals?| A．It helps animals find food more easily. |
| B．It makes it possible for animals to keep in touch. |
| C．It allows animals to find the best place to live. |
| D．It improves the animals’ ability to form a family. |
| A．In fact, all butterflies are good pilots. |
| B．Then the team introduced another butterfly. |
| C．Next, the team made the space a little bigger. |
| D．The insects have been found to have other skills. |
| A．It took place in a real, natural environment. |
| B．It focused on the way the butterfly makes friends. |
| C．It tested the butterfly’s memory of flower colors. |
| D．It offered a more realistic experimental condition. |
A． | B． | C． | D． |
【推荐2】Nowadays, more and more people keep pets at home around the world and they love their pets so much and they see them as members of the family. Do you have pets? Do you play with your pet dog or cat? Do you like touching animals like rabbits? They are cute. But sometimes they can be very dangerous. If your pet dog bites (咬) you, then you will possibly get a terrible disease—rabies.
In China, lots of people got rabies in the first nine months of 2019. In September, about 300 people died of rabies. That is 30% more than last September.
Dogs, cats, rabbits and bats may have rabies. If they bite or scratch (抓) someone, the virus (病毒) of rabies could go into the person’s body. The person could even die. It’s important to get the right treatment very soon. It’s reported that around 60,000 die of rabies every year all over the world. Unluckily, most deaths happen in Asia and Africa. India has the most death. China is the second.
Rabies is so terrible, but there is still something we can do to save ourselves from having it. The most important is that it’s best not to get too close to your pet dog or cat, especially when you have a wound (伤口).
1. From the passage, we know rabies is the name of ________.| A．an illness | B．a pet | C．a person |
| A．The number of people who died of rabies in 2019. |
| B．The number of people who got rabies in 2019. |
| C．The number of people who died of rabies in September 2019. |
| A．Rabbits. | B．Chickens. | C．Cats. |
| A．对待 | B．待遇 | C．治疗 |
| A．storybook | B．medical magazine | C．travel guidebook |
People usually think that cats are not very friendly. Unlike dogs, cats play with people less than dogs. They like to stay alone for hours. However, a new study shows that cats like people just as much as dogs.
Scientists at Oregon State University, the US, studied cats’ relationships (关系) with their owners. They invited 117 cat owners to take a test. In the six-minute test, cat owners walked into a new room with their pets. After two minutes, the owners left the room, leaving the cats alone. When the owners came back two minutes later, the scientists looked at what the cats would do. About two-thirds of the cats came to greet their owners right away when they came back. The cats then went back to looking around the room, but still came back to their owners now and then.
“These cats,” the scientists said, “saw their owners as a source of security (安全的来源) in a new place.” In the same test, 58% of dogs acted just like the cats. “This idea that cats like to stay alone or don’t really care about people isn’t holding up,” said Kristyn Vitale, a scientist who worked on the study. “The more we find out about cats, the more we see that they’re social animals.”
1. People usually think that cats ________.| A．are more friendly than dogs |
| B．are likely to stay by themselves |
| C．like people as much as dogs |
| D．remember their owners well |
| A．the main difference between cats and dogs |
| B．the reasons why cats don’t care about people |
| C．the relationship between cats and their owners |
| D．the ways that cat owners take care of their pets |
| A．different | B．clear | C．new | D．true |
| A．Cats Like to Be Alone | B．Dogs Love Their Owners |
| C．Dogs Are More Friendly | D．Cats Are Our Friends |
