1. What’s wrong with the man?
| A．His right leg aches. |
| B．He can’t sleep. |
| C．He has a fever. |
| A．His strange habit. |
| B．His working too hard. |
| C．His unhealthy diet. |
| A．At 2 pm. |
| B．At 5 pm. |
| C．At 7 pm. |
| A．He is healthy. |
| B．He is lazy. |
| C．He is busy. |
| A．His knee. | B．His foot. | C．His leg. |
| A．Making the wearer feel tired. |
| B．Gradually weakening an adult’s eyes. |
| C．The loss of vision in children. |
| D．Permanent change of the eye structure. |
| A．Working hard. | B．Wearing sunglasses. |
| C．Watching TV in poor light. | D．Reading in bed. |
| A．Ways of choosing eye glasses. |
| B．Suggestions of eyesight protection. |
| C．Untruths of eye glasses and eyesight. |
| D．Proven facts of the benefits of eye glasses. |
1. Who is the woman probably talking to?
| A．Her doctor. |
| B．Her golf teacher. |
| C．Her good friend. |
| A．In two weeks. |
| B．In three weeks. |
| C．In three months. |
| A．His leg. |
| B．His back. |
| C．His shoulder. |
5 . The eyes are the windows of the soul (心灵). Having a pair of bright, clear eyes is very important, so we should protect our eyes throughout our lives.
Don’t read while lying down or walking. Relax after every hour of reading. Keep a distance from the TV set when you watch TV and give your eyes a rest every 30 minutes. Don’t stare at (盯看) the sun or try to read in the darkness.
Get your eyes checked often.
Not many people have this habit, but it is necessary. If you feel that there is something wrong with your eyes, get them checked quickly.
Rest your eyes whenever you can.
You can close your eyes for a few seconds or look into the distance for one or two minutes. A small break will relax your eyes.
Besides, be careful when you choose your glasses.
| A．Develop good habits of using eyes. |
| B．It also helps to protect you from getting eye problems. |
| C．Make sure you get enough sleep every night. |
| D．Glasses that aren’t suitable for you could bring you trouble. |
| E．Even if you’re wearing sunglasses, never look directly at the sun. |
| F．Eye problem can be found and treated early with regular checks. |
| G．Drink green tea every day as a way to protect your eyes against eye problems. |
6 . Taking Care of Your Eyes
Many of us don’t pay much attention to eye care. It’s said that if you take care of your eyes, you can surely be healthy.
Something dirty can cause redness and make you feel uncomfortable. It is bad for your eyes, too. If this happens, the best way is to clean your eyes by using cold water.
| A．That’s why our eyes should be given lots of care. |
| B．All above are natural ways of eye care that can help us keep healthy eyes. |
| C．Eating healthy food will do good to your eyesight. |
| D．You must also try your best to protect your eyes from harmful things. |
| E．Such behavior will do harm to our eyes. |
| F．What can we do to protect our eyesight? |
| G．Televisions, computers and reading are also the causes of poor eyesight. |
Nowadays people’s screen time is really much. Both adults
Looking at a screen for a long time is harmful
In today’s society, it may not seem that we can cut screens out
8 . Bad teeth may be painful and it’s getting worse without treatment. They can even ruin your life. Illness of the teeth can find its way into the blood system. This can increase the chances of a heart disease or other illnesses.
Experts say good care for teeth should start at birth. Mothers’ milk is the best food for the healthy development of teeth.
But dentists say a baby’s mouth and early teeth should be cleaned after each feeding. Use a cloth with a little warm water. Do the same if a baby is fed with a bottle. Experts say if you decide to put your baby to sleep with a bottle, give him only water.
When a baby’s teeth begin to appear, you can clean them with a wet toothbrush. Dentists say it is important to find soft toothbrushes made especially for babies and to use them very gently. Young children often eat toothpaste (牙膏) when they brush their teeth, so they should be carefully watched when they brush their teeth.
Parents often ask what effect thumb sucking (吮拇指) might have on their baby’s teeth. Experts generally agree that this is fine early in life. Most children stop sucking their thumbs by the age of four. If it continues, parents should talk to their children’s dentists or doctors.
Dentists say children should have their first dental visit by the time they are one year old. They say babies should be examined when their first teeth appear, usually at around six months.
1. People should pay attention to teeth problems because ________.| A．they will bring bad luck |
| B．they will bring the family much trouble |
| C．they usually last a long time |
| D．they can cause other illnesses |
| A．he begins to speak | B．he was born |
| C．he has his first tooth | D．he is fed with a bottle |
| A．children’s toothbrushes are always expensive |
| B．children are not advised to brush their teeth |
| C．drinking water is better for babies’ teeth than milk before sleeping |
| D．thumb sucking is common for kids |
9 . Wisdom teeth seem like a biological mistake, leading to millions of surgeries per year. But for some people, these “extra” teeth come up just fine, while others don’t get them at all. What’s the biological story here?
According to the standard story, before surgical intervention, people with impacted wisdom teeth expired. Those lacking the problematic teeth increased in number, passing on genes for reduced numbers of teeth to future generations. Today, thanks to dental surgeons, individuals with impacted teeth survive and contribute to the gene pool.
But decades of research challenges this survival-of-the-toothless explanation. Many scholars now propose that wisdom teeth problems originate from our eating softer foods as children, made possible by farming and industrialization. Here’s the theory: Compared to wild resources consumed by hunter-gatherers, agricultural and processed foods are softer. Hard food during childhood seems to stimulate jaw growth, allowing mouths to grow large enough for more teeth. Soft food doesn’t require enough of a chewing workout to maximize jaw growth potential.
Around 12,000 years ago, humans began to experiment with farming, and this lifestyle ultimately took hold in most societies. Domesticated products, like wheat flour and cow’s milk, make for much softer diets than wild foods. What’s more, the industrialization of food production has really softened our meals. So the idea is that processed and/or agricultural diets reduce the stress on our jaws necessary to result in full growth when we reach early adulthood. By the time we’re reaching adulthood, there may not be enough space to accommodate our final molars (臼齿).
This theory is supported by research. For example, a 201l paper measured skulls housed in museums from six farming and five hunter-gatherer groups. The farmers, raised on softer foods, consistently had shorter jaws, which would have provided less space for tooth formation.
Consequently, many dental scientists recommend parents put some additional raw fruits, vegetables and nuts on kids’ plates, which could potentially prevent later wisdom teeth removals.
1. What does the underlined word “expired” in Paragraph 2 mean?| A．Suffered. | B．Complained. | C．Died. | D．Failed. |
| A．They tended to have very large jaws. |
| B．They hated food requiring a chewing workout. |
| C．They were often troubled by impacted wisdom teeth. |
| D．They believed in the survival-of-the-toothless theory. |
| A．Bring their kids to the dentist regularly. |
| B．Increase the number of hard foods in their kids’ diet. |
| C．Get more kids’ tooth formation knowledge. |
| D．Encourage their kids to eat more cooked vegetables. |
| A．What role do genes play in our tooth formation? |
| B．What can we do to accommodate our final molars? |
| C．Why do some people have reduced numbers of teeth? |
| D．Why do humans have wisdom teeth that need to be removed? |
10 . Scientists recently discovered that our brains may be just as busy at night as they are during the day. While we sleep, our brains are doing much more than getting ready for the next day. Scientists found that the brain may be busy cleaning out harmful waste materials.
As with many studies, scientists turned to mice for help. They studied the mice brains as they slept and when they were awake. They saw that the brains of sleeping mice were hard at work.
Dr. Maiken led the study. The brain expert says our brains perform two very different jobs. It seems they have daytime jobs. Later they “moonlight” at a nighttime job. And this study says that is what our brains seem to be doing. “When we are awake, the brain cells are working very hard at processing all the information around us. When we are asleep, they work very, very hard at removing all the waste that builds up when we are awake.” The scientists say that the waste material includes poisons.
They also found that during sleep, the brain’s cells become smaller, which allows waste to be removed more successfully. Dr. Maiken says these poisons end up in the liver(肝脏). There, they are broken down and then removed from the body. “So we need to sleep because we have a cleaning system that removes many of the poisonous waste products from the brain.”
Dr. Maiken says the next step is to look for the process in human brains. She says the results show how important sleep is to health and fighting disease. The research may also one day lead to treatments to prevent or help fight mental disorders(精神疾病).
1. According to the scientists, when we sleep, our brains .| A．clean themselves | B．turn off for the night |
| C．process information | D．store energy for the next day |
| A．you work in the moonlight | B．you work hard |
| C．you work only at night | D．you have an extra job |
| A．breaking it down | B．sending it to the liver |
| C．building it up in order | D．removing it from the body |
| A．Opposed. | B．Indifferent. | C．Supportive. | D．Critical. |
