A food allergy (过敏) is a medical condition that occurs when the body’s protection system perceives certain foods as a threat and responds to them with an allergic reaction.
Symptoms (症状) of a food allergy
Judging a food allergy
Doctors consider a number of factors when investigating a food allergy. Those include both a patient’s symptoms and family history of allergies. A physical examination may be performed to rule out any other conditions.
Treating a food allergy
It may not be possible for a patient to completely avoid foods that induce (导致) an allergic reaction. For minor reactions, you can take some medicine. For severe reactions, however, turn to doctors for help.
The only sure way to prevent an allergic reaction to food is to carefully avoid the allergens. This can be a difficult process. That requires patients to carefully study food labels to ensure the food is safe for them.
| A．Avoiding harm from allergy. |
| B．Preventing an allergic reaction. |
| C．Not everyone knows what a food allergy is. |
| D．But many people don’t know the allergens. |
| E．Other tests can include blood test or oral food challenge. |
| F．An allergic reaction to food usually occurs within minutes. |
| G．For some people, certain allergens can bring a severe reaction. |
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【推荐1】If you have ever lost touch with old school friends, you may find yourself wanting to make contact again. Some teens find that certain school friends are worth keeping contact with and want to keep the friendship going strong.
Hang out at the same places
One way you can get together with old friends from your school is to go to the same places that they go to. If you still go to school together，you probably know where everyone goes on the weekends. If you are able to go there too, you may find that your relationships with your old school friends start up again.
Sports teams
If you are athletic and your former friends are too, joining school sports teams is a great way to catch up with old friends. This doesn't mean that you should join a sport which you do not like just so you can see your old friends. However, if you like sports，wish to join a team and your former friends are on that team, then playing the team sports is a great way to get to know them again.
Take part in school clubs
There are often a lot of school clubs in which teens participate. Depending on your interests and your former friends' interests，you may just find a club at school. Sharing a common interest such as a club activity will help you to have something in common and something to talk about.
1. The first paragraph is mainly to tell us that ________.| A．school friendship will surely become stronger |
| B．friendship with old school friends is valuable |
| C．school friendship can always last for a long time |
| D．it's difficult to keep in touch with old school friends |
| A．joining the dance clubs |
| B．having dinner with them |
| C．going to the places where they go |
| D．going shopping with them every day |
| A．playing sports helps you get your old friends again |
| B．you have to play a sport to make more friends |
| C．team sports are interesting activities at school |
| D．you have to play the sport your friends like |
| A．To tell a hobby | B．To share same interests. |
| C．To join clubs. | D．To contact old friends. |
【推荐2】I waited in line for hours in Central Park for tickets to Shakespeare, so I could share my experience with you. I hope my experience will be helpful to you!
1. Plan for the weather.
You’ll be sitting outside for several hours waiting for tickets. If it’s going to be a sunny day, bring sun cream and water. If you think it might rain, bring your umbrella or raincoat. If the day promises to be unseasonably cool, you’ll be happy you’ve brought a sweater or jacket along.
2. Keep yourself entertained.
Bring an iPad, a good book, some magazines or even some work along with you to pass the time. You’ll be in line for about 3-4 hours, and you’ll be glad to have a crossword puzzle or other games to kill the time once the people-watching starts to get boring.
3. Know the basics.
Free tickets are being given out for the same day’s performance and they are not changeable. That means if it rains, you’re out of luck. That also means that you have to wait for tickets in the morning and attend the evening’s performance the same night (Doors open around 8 p.m. for the 8:30 p.m. show.).
4. Feeling fortunate? Enter the online ticket lottery(抽签获票).
If you don’t want to spend several hours waiting in line for tickets, you can try your luck on the Internet. Once you set up your account, you can enter the online ticket lottery between midnight and noon. You’ll get an email message around noon if you’ve gotten tickets, and you can pick up your tickets at the Delacorte Theater between 5:30 pm and 7:30 pm.
1. Why is a crossword puzzle suggested by the author?| A．To cool you down on a sunny day. |
| B．To give you something to read. |
| C．To entertain you while you are waiting. |
| D．To make iPad games amusing . |
| A．Being seated for the evening show at 8:20 p.m. |
| B．Changing your free tickets for another day. |
| C．Getting free tickets in the rain. |
| D．Trying your luck to get free tickets on the Internet. |
| A．To give us some tips on buying online tickets. |
| B．To make sure you are entertained while you are in line. |
| C．To call on us to read more books about Shakespeare. |
| D．To give practical advice about getting tickets. |
【推荐3】Living with self-doubt can be very challenging. It limits potential and breaks morale. Here are some strategies that you can use to overcome self-doubt.
● Self-compassion (自我同情) is the key.
We often doubt ourselves when we have the fear of losing, but that is a grave mistake we make. Everyone will make mistakes at some part in their lives, but we have to grow from those mistakes and transform them into a lesson.
Start your day with some positivity, look at yourself in the mirror, and make some positive affirmations (肯定).
● Reflect back to your past achievements.
●
“You are known by the company you keep”, is one of the best sayings to explain this strategy. We should be surrounded by people that support and love us, not people that constantly make us doubt ourselves. Good people will help you recover from negative and stressful situations.
●Seek professional help if necessary.
● Start journaling events.
In life, there will come many events that we are thankful for, especially our achievements.
| A．Develop new friendships. |
| B．This will make your day better! |
| C．They won’t encourage you to be better. |
| D．Always be in the company of supportive people. |
| E．It is better to start keeping track or record of them. |
| F．Sometimes the situation can become too much to handle. |
| G．Do you remember the time when you achieved something remarikable? |
【推荐1】We are the products of evolution, and not just evolution that occurred billions of years ago. As scientists look deeper into our genes (基因), they are finding examples of human evolution in just the past few thousand years. People in Ethiopian highlands have adapted to living at high altitudes. Cattle -raising people in East Africa and northern Europe have gained a mutation (突变) that helps them digest milk as adults.
On Thursday in an article published in Cell, a team of researchers reported a new kind of adaptation - not to air or to food, but to the ocean. A group of sea-dwelling people in Southeast Asia have evolved into better divers. The Bajau, as these people are known, number in the hundreds of thousands in Indonesia, Malaysia and the Philippines. They have traditionally lived on houseboats; in recent times, they’ve also built houses on stilts (支柱) in coastal waters. “They are simply a stranger to the land,” said Redney C. Jubilado, a University of Hawaii researcher who studies the Bajau.
Dr. Jubilado first met the Bajau while growing up on Samal Island in the Philippines. They made a living as divers, spearfishing or harvesting shellfish. “We were so amazed that they could stay underwater much longer than us local islanders,” Dr. Jubilado said. “I could see them actually walking under the sea.”
In2015, Melissa Ilardo, then a graduate student in genetics at the University of Copenhagen, heard about the Bajau. She wondered if centuries of diving could have led to the evolution of physical characteristics that made the task easier for them. “it seemed like the perfect chance for natural selection to act on a population,” said Dr. Ilardo. She also said there were likely a number of other genes that help the Bajau dive.
1. Where do the Bajau build their houses?| A．In valleys. |
| B．Near rivers. |
| C．On the beach. |
| D．Off the coast. |
| A．They could walk on stilts all day. |
| B．They had a superb way of fishing. |
| C．They could stay long underwater. |
| D．They lived on both land and water. |
【推荐2】Not getting enough sleep is bad for health. According to the research from the scientists, people who don’t get enough sleep are less willing to socialize (社交) with others. They are simply too tired to go out.
The researchers did a small study. They tested 18 young people who had good sleep after a sleepless night. The participants watched videos of people with neutral (无倾向性的) expressions walking towards them. When the person on the video got too “close” to them, they pushed a button to stop the video.
The participants kept the person at a distance of 60% further if they hadn’t got enough sleep. They felt that their personal space was being invaded (侵占). But when the participants got a good night’s sleep, they allowed the person to get much closer to them.
The result shows that the less sleep you get, the less you want to socialize with others. In turn, other people may think you strange and stay away from you. So if you want to be a more sociable (喜欢与人交往的) and popular person, sleeping well might help.
1. Not getting enough sleep ________.| A．isn’t good for health | B．makes people more active |
| C．makes school life busy | D．makes people more relaxed |
| A．who had good sleep | B．who did a small study |
| C．who watched videos | D．who were tired to go out |
| A．Sleeping less makes people more popular. | B．Lonely people sleep much. |
| C．Sleeping well makes people more sociable. | D．Popular people never feel tired. |
【推荐3】Each dog is an individual and will have variances in their personality, meaning that there is no guarantee that the puppy you bring home will be a perfect fit. These are our best recommendations.
Australian Shepherd
Contrary to their name, the Australian Shepherd is actually an American kind. If you are planning to keep larger animals on your homestead, having a shepherd dog to help you control them is a must. Australian Shepherds are quick, light on their feet and highly intelligent.
This rapid intelligence also makes them excellent at trick training if you ever want to branch out and teach them to do other things.
American Labrador
Their love of the outdoors combined with their happy-go-lucky personalities makes them a great match for the homestead lifestyle, which makes them suitable for the elderly at home.
Though they have a love of chasing, Labradors make a great homestead dog as they have a very low chase drive. This means they are incredibly unlikely to chase and injure your animals.
Mastiff
Though they are not as intelligent as some of other kinds on this list, having a Mastiff on your homestead can act as a deterrent (威慑作用) for others. Providing a shelter for your mastiff-type dog to stay outside with your animals will cause any stealers to think twice before entering your property.
Great Pyrenees
Great Pyrenes have a very little desire to dig, so your vegetable patches are safe.
Equally, they have little desire to chase, and so your domestic animals are safe. Their naturally protective nature means they are happy to work as guard dogs, protecting all of them from stealers.
1. What can we know about Australian Shepherds?| A．They like the outdoors. |
| B．They are less intelligent. |
| C．They work as guard dogs. |
| D．They are good at trick training. |
| A．Australian Shepherd. |
| B．American Labrador. |
| C．Mastiff. |
| D．Great Pyrenees. |
| A．They have little desire to chase. |
| B．They love to live with other animals. |
| C．They can help protect your property. |
| D．They get protective skills from humans. |
