We assume exercise improves our mental health. But what kind of exercise works best? Researchers analyzed the effect of different types of exercise. They looked at the link between physical activities and mental health and found team sports were the best, followed by cycling, either on the road or a stationary bike. Physical activities typically performed in groups, such as team sports and gym classes, provided greater benefits than running or walking.
Researchers rated mental health based on a survey. It asked respondents how many days in the previous month their mental health was “not good” due to stress, depression or problems withemotions. People who played team sports like soccer and basketball reported 22.3% fewer poor mental-health days than those who didn’t exercise. Those who ran or jogged fared 19% better, while those who did household chores 11.8% better.
They found team sports may have an extra benefit because of the social component, and yoga or tai chi can promote mindfulness, which is often touted as beneficial for mental health.
The researchers also found that those who exercise between 30 and 60 minutes had the best mental health, with 45 minutes the optimal duration. Exercising three to five times a week correlated with fewer dark days. “Over 90 minutes of exercise and there isn’t an extra benefit,” Dr. Chekroud said.
The study analyzed the exercise habits and mental health of 1.2 million US adults, based on self-reported answers to survey questions from the Centers for Disease Control and Prevention. It wasn’t a randomized controlled study and just an association between exercise and better mental health. It can’t explain if poor mental health causes people to exercise less or exercise causes people to have better mental health.
1. Which exercise will best help to cheer up the depressed?| A．Running and jogging outdoors. | B．Playing soccer and basketball. |
| C．Doing some household chores. | D．Cycling or riding a stationary bike. |
| A．They boost self-esteem. | B．They offer inner peace. |
| C．They involve interaction. | D．They help achieve goals. |
| A．more exercise isn’t always better |
| B．exercise habits decide mental health |
| C．exercise leads to better mental health |
| D．mental health causes people to exercise |
| A．What sports work best for mental health? | B．More exercise, better mental health! |
| C．Less exercise, poor mental health! | D．What is the good effect of exercise? |
相似题推荐
【推荐1】Ruby Tucker dances around a heavy bag hanging from a chain inside Zilla Boxing Club in New Jersey. Each punch (用拳猛击) is accompanied by the sounds of the 8-year-old’s breathing and sounds of gloves striking the bag and chains sounding. With lightning speed, she throws a set of punches, including the uppercut and the hook — her favorites because “they’re the strongest punches,” she says. “The best ones for knocking a person down.” They allow her to move fast, with confidence.
“Nice job, baby,” says her father, coach and trainer, Kijuan Tucker, the owner of Zilla Boxing Club for youths. When Tucker first introduced his daughter to boxing, it was all about teaching her self-defense (自卫). Ruby, however, was a born boxer and took to the sport immediately. It’s become her true passion at a young age. “You can’t always be with your kids, and I feel like she will be able to handle herself if needed,” Tucker said.
The confidence she’s gained from the sport also inspired Tucker to open Zilla so that other children could learn to defend themselves. “Boxing really helps with confidence. We don’t expect everyone to become a world champion, but that confidence developed through training and discipline is amazing,” Tucker said. “To me, the main thing I look for right now is a confidence builder more than anything else. It’s what any champion needs.”
“What I want people to know about boxing is that it is not always about winning,” Ruby said. “It is about giving your effort and giving your all, and then that matters when you have a win under your belt. It doesn’t matter if you didn’t work and you just won.”
1. How does the author start the text?| A．By explaining the best punches of boxing. | B．By describing a scene of boxing training. |
| C．By introducing a fierce boxing match. | D．By talking about the boxing rules. |
| A．To help start his boxing club. | B．To attract more boxing fans. |
| C．To defend herself. | D．To let her have a hobby. |
| A．Making more money to be a millionaire. |
| B．Training youths to become world champions. |
| C．Training youths to become most skillful. |
| D．Helping kids become confident in themselves. |
| A．Success matters after you try your best. |
| B．Failure comes when you refuse to work hard. |
| C．Winning is accompanied with receiving belts. |
| D．Honors are an award for your expenses. |
【推荐2】The 25-year-old African student in Cangzhou Technical College, north China’s Hebei Province, has practiced Tai Chi for two years. He is now a huge fan of the slow-speed martial art.
As a child in his own country, the Tanzanian was already a fan of kung fu stars such as Bruce Lee, Jackie Chan, Jet Li and Donnie Yen. He understood Chinese kung Fu to be a fast-paced attack and defense art.
“Tai chi is different from the Chinese kung Fu that I knew. It is slow. But as I practice it, I have realized that the slow moments are far from being simple,” Abdi said.
The school provides a Tai Chi course for all foreign students. Abdi has already learned to practice Tai Chi moves with balance and deep rhythmic breathing, which allows him to feel the charm of the exercise. It brings peace and calmness to his mind, while building his muscles.
The International Exchange Center of the college has had more than 300 international students from more than 50 countries since 2016, mainly countries along “the Belt and Road.”
“My parents wish me to study international trade to better prepare me for my job in the booming trade between China and Tanzania. But it is my own dream to chase the Chinese martial arts,” said Abdi.
Practicing Tai Chi has led him to have a complete appreciation of Chinese culture. He now prefers people call him by his Chinese name Chen Yanzhi, as the name means talented and kind.
“Tai chi movements are quiet but full of power. It has inspired my understanding of China, which has the same spirit. My mother has felt the same way after she visited me here,” Abdi said.
He said his Rwandan classmate likes to post videos of them practicing Tai Chi on social media, and another Cameroonian classmate has learned from Tai Chi how to improve his boxing skills.
“When I return home, I will use my Chinese name to teach Tai Chi in my country, so that more people can benefit from this magical Kung Fu,” said Abdi. Enditem.
1. What is it that Tai Chi is different from Chinese kung fu?| A．Tai Chi is a defense art. | B．Tai Chi is a fast-paced attack. |
| C．Tai Chi is slow. | D．Tai Chi is simple. |
| A．It builds his muscles. |
| B．It helps him regain a healthy lifestyle. |
| C．It brings peace and calmness to his mind. |
| D．It allows him to feel the charm of the exercise. |
| A．Because he liked slow-moving exercise. |
| B．Because Tai Chi was easy for him to learn. |
| C．Because Tai Chi helped him burn more calories to aid in weight loss. |
| D．Because Tai Chi has helped him have a full understanding of Chinese culture. |
| A．Tai Chi has become a sport event. |
| B．Tai Chi is active only in central China. |
| C．Tai Chi becomes more and more popular in the world. |
| D．Tai Chi opens a window for Chinese people to know about the world. |
【推荐3】The beach may seem like an inviting place to run on a cool summer morning, but is running on the sand good for your body? It can be, but it's important to know the challenges that some beach runners experience.
Running on the beach can be a good thing. It's certainly different from running on the pavement or a track. For starters, sand can be a challenge because it has an uneven (不平坦的）surface. As you push off, you're going to lose some of your push as the sand moves. So, you're not going to be able to push your-self forward as you would on a track or a pavement. But this unevenness has an upside: It gives your body an extra workout, forcing you to exercise muscles that don't get as much use during run on firm surfaces. For instance, your feet, ankles and lower back might feel sorer and more tired than usual after a beach run just because that surface is constantly moving and changing step to step.
You also might feel sore afterward because beaches tend to slope (倾斜) down to the water. If you're going for a long run on the beach, you might notice that one side of your body might feel sorer because you're putting more pressure on it due to the slope.
Some beach runners prefer to run barefoot. However, if you're not used to barefoot running, start slowly and don't run long distances at first. That's because running barefoot uses different muscles than running with shoes does, and it's important to strengthen these muscles and adapt (使适应) your feet. If you want to run barefoot, it's great, but ease into it.
In spite of these challenges, running on the sand can be a smart choice for you, because running on softer ground surfaces can reduce muscle damage.
1. Why is it difficult to run on the beach?| A．The soft surface makes people fall over easily. |
| B．It takes much effort to run on its moving surface. |
| C．People need to run carefully on its uneven surface. |
| D．It's hard to keep one's balance on its sloping surface. |
| A．Advantage. | B．Reason. | C．Character. | D．Challenge. |
| A．Disapproving. | B．Supportive. | C．Doubtful. | D．Impersonal. |
| A．Is running on the beach good for your body? | B．Do you need to adapt yourself to beach running? |
| C．What are the challenges of running on the sand? | D．Why do you feel sore after running on the beach? |
【推荐1】Among all the stress management strategies out there we have long ignored one essential factor —rest. However, there has recently been a growing realization within psychology circles that the body and mind are deeply intertwined (缠绕) with each other.
Realizing how your physical health affects the mind
These are cases in point.
It is now common knowledge that physical exercise, in addition to therapy, helps to reduce depression. Besides, a healthy sleeping pattern also offers protection against all kinds of psychological disorders.
Rethinking the value of rest
When you decide to do something about your stress levels, try to rethink the value of rest. Usually the first step is to take better care of your body.
Rest is actually crucial to our well-being and is good for both body and mind. We all need at least a little time to think, to reflect on life and even just do nothing.
| A．This step can lead to mental relief as well. |
| B．Aside from sleep, a healthy diet is known to reduce stress. |
| C．But there have been very few discoveries concerning the topic. |
| D．Our mental health is determined largely by our physical condition. |
| E．Getting enough rest is not just something we should do when we are tired out. |
| F．Having a good rest is something we need to do when we are in psychological disorders. |
| G．You may suffer more from stress when you are feeling run down or are suffering from a flu. |
【推荐2】“We are what we eat”—or so the saying goes. From high-calorie meals to low-fat lunches, much of our health depends on what we eat. We know about the benefits of eating properly for our physical well-being, but food and cooking it is proving to be good for our mental well-being as well.
Some people are now advocating the therapeutic (治疗的）value of cooking food. It’s not just about the end result but the experience someone goes through.
TV chef and author Nadiya Hussain agrees that cooking is great for helping our mind. She loves to bake and became the champion of the TV show, The Great British Bake Off. She says that “Baking’s always been about therapy... It’s never really been about the cake.” And she thinks that baking is an important tool for our socialisation and mental health.
Certainly, creating some delicious food has helped some of us get through the recent lockdown; it’s helped take our mind off things and given us something to do. People have said that kneading dough (面团) to make bread, for example, has given them a sense of calm and control. Research has shown that doing creative tasks, like cooking, makes us feel happier.
Nicole Farmer, who studies how food impacts our biology, behavior and mental health, told BBC online that “cooking represents the shared human experience of food, and nurturing people through food, so I think that’s where it integrates opportunity into immediate positive emotions”.
Of course, cooking can be a very sociable activity and sharing the end result, a rewarding experience. Hopefully, as we start to mix with friends and family again, we can enjoy the benefits once more and put us all in the right frame of mind.
1. What does the underlined word “well-being” mean in the first paragraph?| A．Happiness. | B．Recovery. |
| C．Preference. | D．Influence. |
| A．To explain a regulation. | B．To support a viewpoint. |
| C．To present a fact. | D．To make a prediction. |
| A．By creating delicious food. |
| B．By offering a sense of quietness. |
| C．By impressing human experience of food. |
| D．By drawing one’s attention to be occupied. |
| A．We Are What We Eat |
| B．How Food Affects Our Behavior |
| C．Cooking Benefits Mental Health |
| D．Cooking Helps Connect Friends and Family |
【推荐3】It’s December and there’s a definite chill in the air. The last thing you probably feel like doing in winter is opening a window, turning down the central heating and shifting workouts from a warm, cosy gym to the outdoors.
Hop off the treadmill (跑步机) and head outdoors for a greater fitness effect. Cold as it seems outdoors, running, cycling or walking in winter not only are good for you, but also make you feel easier once you get moving. Provided conditions are not freezing, our bodies tend to respond positively to colder weather workouts. Compared with exercising in the heat, there is less stress on the heart.
Cool your bedroom to burn extra calories and sleep well. Underfloor heating and a quilt might make your bedroom feel cosy but they won’t help you sleep.
Turn down the central heating to improve your blood sugar control. Studies have shown how repeated exposure to colder temperatures removes sugar from the blood quickly, a risk factor for diabetes (糖尿病).
| A．Take an outdoor dip to relieve stress. |
| B．Therefore, it is likely to feel less of an effort. |
| C．Neither will they better your health and fat-burning potential. |
| D．The key is not to lower the temperature by several degrees suddenly. |
| E．Take a cold shower to boost your mood and support your immune system. |
| F．But embracing, rather than avoiding cold temperatures, can enhance health. |
| G．Being so uncomfortably cold that we shake is not required for a health boost. |
【推荐1】The oceans have a plastic problem, and it’s growing by 8 million tons a year. Three years ago, a Dutch teenager named Boyan Slat designed a solution: an ocean rubbish collection device (设备) that would collect ocean plastic without harming ocean life.
These days, Slat is anxious to put his ocean-cleaning idea to the test. A passing grade might lead to the removal of nearly half of the plastic rubbish floating(漂浮) in the Pacific Ocean. But the process needs to be tested in real-world conditions before it can be fully started--- or beat the criticism(批评) of scientists who are doubtful that it can work.
Slat’s idea is opposite to present oceanic cleanup methods: Instead of sending ships out to run after floating rubbish, place a fixed, floating, V-shaped buffer(缓冲器) in the ocean so that water moves through it, funneling(使流经漏斗状空间) plastic rubbish into a container while allowing animals to swim past the net-free device.
To test the idea, Slat and his company, Ocean Cleanup, plan to place a 6, 561-foot-long float in the Korea Strait. If realized, it would be the largest floating structure ever used. If the technology works, Ocean Cleanup hopes to build a 62-mile-long system that would float somewhere between Hawaii and California. This one would be big enough to deal with an area containing millions of tons of plastic rubbish.
When it first appeared on the Internet in 2013, Slat’s plan caught hearts around the world. But the scientific community doubts whether it would work, how effective it would be, and its possible environmental influence. Slat and the 100 workers of his company, Ocean Cleanup, answered last year with a 530-page report, expressing that a 62-mile-long model would remove 42 percent of the plastics in the Pacific Ocean in less than 10 years.
1. Boyan Slat invented the device to ____________.| A．remove ocean plastic | B．catch scientists’ attention |
| C．gain fame | D．beat the criticism of other teenagers |
| A．Its position changes with the wind. |
| B．It collects rubbish with some nets. |
| C．It works mainly with the V-shaped buffer. |
| D．It uses funnels to control the floating plastic. |
| A．Slat tested the device in the Korea Strait. |
| B．Slat’s device works well in the Pacific Ocean. |
| C．Ocean Cleanup built a 62-mile-long floating structure. |
| D．Ocean Cleanup needs to prove the value of its new device. |
| A．Supportive. | B．Doubtful. |
| C．Negative. | D．Objective. |
【推荐2】A sharp rise in US pedestrian(行人) deaths has been partly blamed on people using their smartphones while driving or crossing the road. A recent report estimates that there were 6, 000 pedestrian deaths in 2016, the highest number in more than 20 years. In the last six years, fatalities(死亡数) have grown at four times the rate of overall traffic deaths.
The report say a number of factors are to blame, including mobile use. “A more recent factor contributing to the increase in pedestrian fatalities may be the growing use of smartphones by all road users, which can be a significant source of distraction for both drivers and pedestrians,” the report stated. Other factors include increased driving and more walking for exercise and environmental reasons. Alcohol is also blamed.
The report is based on data from all states for the first six months of 2016. The UK’s Royal Society for the Prevention of Accidents said it also saw mobile phones as dangerously distracting.
“More and more teenagers and young adults are being injured as a result of distraction, as a result of crossing roads while using their phone. This can be as a result of having a conversation, listening to music, texting or using the net,” said road safety manager Nick Lloyd.
Some cities around the world are taking measures to counter the issue of smartphone distraction. In the Bavarian town, the station has fitted red and green lights in the ground to warn people who stubbornly look at their smartphone. Officials in the Dutch town ran trials in February of traffic lights that project a red or green lighting strip across the pavements to alert smartphone zombies who were glued to their mobiles as they cross the road. Social media, games and music are major distractions in traffic. Dutch road safety group VVN said that the idea rewarded bad behavior.
1. What is the purpose of the report?| A．To tell the readers a sharp rise in traffic deaths. |
| B．To state the reasons for the increase in pedestrian fatalities. |
| C．To remind people of the negative effects of using smartphones. |
| D．To appeal to the public not to use their smartphones on the road. |
| A．Traffic flows. | B．Exercise on the roads. |
| C．Smartphone use. | D．Alcohol addiction. |
| A．Prevent. | B．Calculate. | C．Expose. | D．Clarify. |
| A．Flexible. | B．Conservative. | C．Approving. | D．Critical. |
【推荐3】If a president, a philosopher, and one of the best-selling writers told the same secret of their success, would you try to follow it too? What if the secret was something you already knew how to do? In fact, you probably do it every day. Here’s what Friedrich Nietzsche wrote: “It is only ideas gained from walking that have any worth.” Thomas Jefferson: “Walking is the best possible exercise.” Charles Dickens: “If I could not walk far and fast, I think I should just explode and die.”
Researchers have found quite a lot of connections between walking and producing ideas. A Stanford University study found that participants were 81 percent more creative when walking as opposed to sitting. According to the study, walking outside—compared with on a treadmill (跑步机)—produces the highest-quality ideas.
The movement aspect of walking is obviously key. Our creative thinking is triggered (触发) by physical movement, which is exactly why walking with your dog, a friend, or alone—feeds creative thinking.
The scenery is almost as important as the sweat. Breaking your routine with a walk can be a catalyst for fresh understanding of problems or projects. Just by going outside, you are stepping out of your familiar surroundings and your comfort zone, which is necessary if you want to open your mind to new possibilities. You can walk through a tree-filled neighborhood. You can walk through a park and observe people joking or birds singing. Being inside, you’re more likely to be lifeless, which means you don’t have enough energy to wonder or create.
So instead of setting a fitness goal, why not set a creativity goal that starts with walking? Involve yourself more closely in your surroundings. Turn off your phone and give yourself the chance to be present in the world, to hear conversations and natural sounds, and to notice the way people move and the way the sun reflects in a river.
1. How does the author introduce the topic?| A．By giving a definition. | B．By using quotations. |
| C．By providing the background. | D．By presenting examples. |
| A．causing a change | B．stopping progress |
| C．catching eyes | D．discouraging creativity |
| A．Nature exploration improves fitness. |
| B．Walking on a treadmill brings more energy. |
| C．Working indoors makes people less creative. |
| D．Familiar surroundings encourage creative ideas. |
| A．Exercise in Nature | B．Train Your Brain |
| C．Walk for Wonder | D．Develop Your Creativity |
【推荐1】What You Need to Know Before You Go to Alaska
1. HEALTH
Note: If your journey includes travel in Alaska’s high altitude(海拔)regions, you may experience altitude sickness. Please consult your health care provider for suggestions on prevention and treatment.
2. WEATHER
Because of its vast size, a wide variation of climates is found across Alaska. In the interior(内陆)temperatures can exceed 90°F during summer, while the southeast and south-central coastal regions will average 55°F to 70°F. While daytime temperatures can be quite warm nights can be very cool. Use a website such as weather: com to find out the average temperatures and rainfall during your travel time
3. ENVIRONMENTAL CONCERNS
During your tour you will be exposed to the weather. As Abercrombie and Kent (A&K)programs to Alaska operate in summer, exposure to the sun is the most common concern, but cold days are also possible at any time of year. Pay special attention to the clothing suggestions and check the weather before your trip.
National parks and their surrounding areas are often home to a few troublesome plants and insects Poison oak(毒葛 )is one such plant o look out for. Your guides will help you identify t if you’re not sure what to Took for. If you come into contact with it, it is very important to wash with soap and water as quickly as possible. Keep in mind that the irritating oils from the plant are easily transferred from you, your clothing or equipment to other people or equipment, so even if you're not sensitive it is important to consider others.
The mosquito population in summer is quite high. The mosquitoes are large and aggressive. Be certain to pack insect repellent(驱虫剂 ) Those who are more sensitive to mosquitoes may also consider bringing head netting
1. If you want to go to some high locations in Alaska, you should_______.| A．consult some health care specialists for advice |
| B．take as much warm, lightweight clothing as possible |
| C．try to conquer your altitude sickness |
| D．do a lot of exercise in advance |
| A．It is very cold in the daytime and warm at night. |
| B．It has very warm weather during the rainfall season. |
| C．The average temperature is high both in the daytime and at night |
| D．The temperature can change greatly in a day |
| A．Kill it with insect repellent as quickly as possible |
| B．Wash your hands with soap and water as soon as possible. |
| C．Go to hospital to see a doctor as quickly as possible. |
| D．Throw away your clothes as soon as possible |
【推荐2】Mr. Peter Johnson, aged twenty-three, battled for half an hour to escape from his trapped car yesterday when it landed upside down in three feet of water. Mr. Johnson took the only escape route—through the boot(行李箱).
Mr. Johnson’s car had finished up in a ditch(沟渠) at Romney Marsin, Kent after skidding on ice and hitting a bank. “Fortunately, the water began to come in only slowly,” Mr. Johnson said. “I couldn’t force the doors because they were jammed against the walls of the ditch and dared not open the windows because I knew water would come flooding in.”
Mr. Johnson, a sweet salesman of Sitting Home, Kent, first tried to attract the attention of other motorists by sounding the horn and hammering on the roof and boot. Then he began his struggle to escape.
Later he said, “It was really a half penny that saved my life. It was the only coin I had in my pocket and I used it to unscrew the back seat to get into the boot. I hammered desperately with a hammer trying to make someone hear, but no help came.”
It took ten minutes to unscrew the seat, and a further five minutes to clear the sweet samples from the boot. Then Mr. Johnson found a wrench and began to work on the boot lock. Fifteen minutes passed by. “It was the only chance I had. Finally it gave, but as soon as I moved the boot lid, the water and mud poured in. I forced the lid down into the mud and scrambled clear as the car filled up.”
His hands and arms cut and bruised(擦伤), Mr. Johnson got to Beckett Farm nearby, where he was looked after by the farmer’s wife, Mrs. Lucy Bates. Huddled in a blanket, he said, “That thirty minutes seemed like hours.” Only the tips of the car wheels were visible, police said last night. The vehicle had sunk into two feet of mud at the bottom of the ditch.
1. What is the best title for this newspaper article?| A．The Story of Mr. Johnson, A Sweet Salesman |
| B．Car Boot Can Serve As The Best Escape Route |
| C．Driver Escapes Through Car Boot |
| D．The Driver Survived A Terrible Car Accident |
| A．The hammer. | B．The coin. | C．The screw. | D．The horn. |
| A．Mr. Johnson’s car stood on its boot as it fell down. |
| B．Mr. Johnson could not escape from the door because it was full of sweet jam. |
| C．Mr. Johnson’s car accident was partly due to the slippery road. |
| D．Mr. Johnson struggled in the pouring mud as he unscrewed the back seat. |
| A．Luckily the door was torn away in the end | B．At last the wrench went broken |
| C．The lock came open after all his efforts | D．The chance was lost at the last minute |
| A．the ditch was along a quiet country road | B．the accident happened on a clear warm day |
| C．the police helped Mr. Johnson get out of the ditch | D．Mr. Johnson had a tender wife and was well attended |
【推荐3】Automatic dishwashers have been around for more than 100 years. It started in 1886 with Josephine Cochrane, a woman in Shelbyville, Illinois. She was a rich woman who could afford servants to wash her dishes, so she really didn’t mind the work. What she did mind was that her servants broke the dishes. She hosted quite a few dinner parties, and after every party the servants broke more of her expensive dishes.
Finally, Cochrane took action. First, she measured her dishes and bent wire into racks to hold them. Next, she put the racks on a wheel in a large copper boiler. Then, the boiler sprayed hot, soapy water on the dishes as a motor turned the wheel. After a hot water rinse(冲洗), the dishes were clean!
Josephine Cochrane’s friends were impressed with the machine and asked her to build more. After that, word got out fast. Soon hotel and restaurant owners who didn’t like broken dishes also were interested. Cochrane then knew that she had a wonderful machine, so she received a patent from the government, which said that only the inventor can make money from an invention. Then in 1893 Chicago held a World’s Fair where inventions from all over the world were shown. Cochrane’s labor-saving machine was a big hit. Her dishwasher won the highest award.
Cochrane’s company came out with a smaller machine in 1914. It was supposed to be for the ordinary home, but it wasn’t an immediate success. Many homes couldn’t produce the extremely hot water it needed. Also, in most homes, dishwashing wasn’t considered very difficult compared to most other housework. In fact some people liked to relax at the sink after a hard day! Sales of the home model finally picked up in the 1950s when people had more money and wanted to have more time to enjoy themselves. Now many homes have electric dishwashers that aren’t very different from the one Josephine Cochrane invented more than 100 years ago.
1. Why did Josephine Cochrane invent the dishwasher?| A．To reduce the number of servants. |
| B．To avoid possible damage to the dishes. |
| C．To host more dinner parties. |
| D．To make the dishes cleaner. |
| A．The machine wasn’t as efficient as described. |
| B．Josephine Cochrane could no longer keep it a secret. |
| C．Josephine’s friends soon began to talk about the new machine. |
| D．The invention drew immediate attention of the public. |
| A．people’s living conditions improved |
| B．hot water was not needed |
| C．housework became easier |
| D．people had more relaxing jobs |
| A．cost less money |
| B．are quite different |
| C．wash many other things |
| D．are much the same |
