Food safety is a problem in all places around the world and people in different areas of the world prepare foods in different ways. The WHO released (发布) five simple rules for preparing food in a safe way. They call these rules the “Five Keys to Safer Food”.

Key 1: Keep clean

    {#blank#}1{#/blank#} People should wash their hands often — before touching food and while they are preparing food. People should wash all surfaces and equipment used for preparing food.

Key 2: Separate raw (生的) and cooked

    Raw foods should not touch prepared foods.{#blank#}2{#/blank#}

Key 3:{#blank#}3{#/blank#}

    People should cook eggs and meat especially carefully. These foods may carry more micro-organisms (微生物) than other foods. Food like soup must be boiled for at least a minute to make it be cooked completely. It is also important that people re-heat cooked food completely.

Key 4: Keep food at safe temperatures

    When people are finished with eating, they should keep the left food in a refrigerator below 5℃ and shouldn't store it for too long. At room temperature, about 20℃, the amount of micro-organisms can increase very quickly. But temperatures above 60℃ or below 5℃ control the growth of micro-organisms.{#blank#}4{#/blank#}

Key 5: Use safe water and raw materials

    {#blank#}5{#/blank#}. Damaged or old food may develop harmful chemicals as it gets older.

A. Eat healthily

B. Cook completely

C. They can live where we make food

D. This key tells about the importance of washing

E. People should use safe water and choose fresh foods

F. They cannot grow as quickly in a very hot or very cold environment

G. People should use separate equipment and tools for touching and preparing raw foods

    Are you suffering from FOMO—that is, Fear Of Missing Out? Research shows that a growing number of young people are, with worrying consequences for their sleep and schoolwork.

    {#blank#}1{#/blank#}You aren't able to do your best unless you sleep well. Most experts agree that the optimum(最适宜) number of hours is eight, and this has been accepted as common sense for as long as I can remember. However, I was young once and know most of you get much less sleep than that.

    I read an interesting article in a teachers' magazine recently.{#blank#}2{#/blank#}Worryingly, the results showed that teenagers are facing a new problem. They may go to bed and get up at appropriate times, but a growing number are waking up in the middle of the night, not to use the bathroom or have a snack, but because of FOMO.

    According to the article, the number of students waking up during the night to check social media is growing. Afraid of missing a comment or opportunity to take part in a chat, teenagers are waking at all times of the night, going online and getting involved.{#blank#}3{#/blank#}

    Experts are worried about this growing trend and the report reveals some worrying statistics: 23% of 12-to 15-year-olds wake up nearly every night to use social media.{#blank#}4{#/blank#}One in third of the students are constantly tired and unable to function to their full capacity.

    So I'd like to ask you to be responsible when it comes to social media. Switch off your devices at night. The world won't end and your social media will be waiting to greet you in the morning!{#blank#}5{#/blank#}

A.But things are getting out of hand.

B.They did a study of 848 students in Wales.

C.Another 15% wake up at night once a week for the same reason.

D.I give you my word that you won't have missed anything important.

E.All happens when they should be sound asleep.

F.FOMO is the fear that everyone else is having more fun and more excitement than you.

G.Everybody knows how important it is for students to get a good night's sleep every night.

    Some people learn a second language easily. Other people have trouble learning a new language. How can you help yourself learn a new language， such as English？{#blank#}1{#/blank#}

    Be patient.

    You do not have to understand everything all at once. {#blank#}2{#/blank#} We can learn from our mistakes.

    Practice your English.

    For example, write in a journal every day. You will get used to writing in English, and you will feel com for table expressing your ideas in English. After several weeks, you will see that your writing is improving.

    {#blank#}3{#/blank#}You can practice with your classmates outside class. You will all make mistakes, but gradually you will become comfortable communicating in English.

    {#blank#}4{#/blank#}

    If you believe that you can learn, you will learn.

    Keep a record of your language learning.

    After each class, think about what you did. Did you answer a question correctly? Did you understand something the teacher explained? Perhaps the lesson was difficult, but you tried to understand it.{#blank#}5{#/blank#}

    Be positive about learning English and believe that you can do it.

    It is important to practice every day and make a record of your achievements. You will enjoy learning English, and you will have more confidence in yourself.

A. Write these achievements(成就) in your journal.

B. Besides, you must speak English every day.

C. Making mistakes is an unavoidable part in your life.

D. There are several ways to make learning English a little easier and more interesting.

E. Share your achievement with your parents and friends.

F. Feel confident(有自信心的) about learning English.

G. It is natural for you to make mistakes when you learn something new.

    Earth is home to around 7,000 languages, around half of which are expected to disappear by 2100.

    Languages disappear for many reasons. Sometimes younger generations stop learning a language because parents want children to fit in. {#blank#}1{#/blank#} Native American children of the late-19th century were required to attend boarding schools where educators forbade them from speaking their native languages.

    The United Nations ranks endangered languages according to their risk level. For example, a "critically endangered" language is one that even grandparents don't speak often. New York's Onondaga language is an example with only 50 speakers left. An "extinct" language has no speakers. It is gone forever. Alaska's Eyak language is one example. {#blank#}2{#/blank#}

    {#blank#}3{#/blank#}In the same way, different languages contribute to cultural diversity. Saving these languages benefits our understanding of other cultures. Languages can show how a society looks at the world and what it values. A language may describe something in a way that is funny, too. In Welsh, it rains not cats and dogs, but old wives and walking sticks.

    The Endangered Language Alliance wants to save languages from disappearing. {#blank#}4{#/blank#} However, its efforts are limited. If an endangered language is going to make a real comeback, it'll probably get its start in schools. For nearly 100 years, public schools in Hawaii did not teach the Hawaiian language. Now students can keep learning in Hawaiian from elementary schools to college and beyond.

    {#blank#}5{#/blank#} At least one did. In 1881, a Jewish linguist named Eliezer Ben-Yehuda brought the 3,000-year-old language Hebrew back to life. Today it is one of the official languages of the country of Israel, with more than 4 million speakers.

A. The last person who spoke it died in 2008.

B. Why should we save endangered languages?

C. Various animals and plants benefit our environment.

D. With just 5 speakers left, it is absolutely endangered.

E. Can a language with zero native speakers come back to life?

F. Sometimes societies force minorities to give up their language.

G. The nonprofit group finds native speakers and records their stories.

Homework

    Do arithmetic problems 15 through 25. State the different forms of the verbs on page 50 of your French workbook. Read pages 12 through 20 of the Shakespeare play, and don't forget to fill in the missing chemical symbols on the worksheet.

    Sound like a list of your homework for the next few nights－or maybe even just for tonight? {#blank#}1{#/blank#} It's your teachers' way of evaluating how much you understand what's going on in class. And it helps strengthen important concepts.

    {#blank#}2{#/blank#} It's inviting to start with the easy things to get them out of the way. However, you'll have the most energy and focus when you begin, so it's best to use this mental power on the subjects that are most challenging. Later, when you're more tired, you can focus on the simpler things. If you get stuck on a problem, try to figure it out as well as you can－but don't spend too much time on it because this can mess up your homework schedule for the rest of the night. {#blank#}3{#/blank#}But don't pick someone whom you'll be up all night chatting with, or you'll never get it done!

    Most people's attention spans aren't very long, so take some breaks while doing your homework. Sitting for too long without relaxing will make you less productive than if you stop every so often. Taking a 15-minute break every hour is a good idea for most people. {#blank#}4{#/blank#}

    Once your homework is done, you can check over it if you have extra time. Be sure to put it safely away in your backpack－there's nothing worse than having a completed assignment that you can't find the next morning or that gets ruined by a careless brother or sister. {#blank#}5{#/blank#} Now you're free to hang out.

A. Homework is a major part of going to school.

B. Luckily, you can do a few things to do less homework.

C. When you start your homework, deal with the hardest tasks first.

D. But if you're really concentrating, wait until it's a good time to stop.

E. If you need to, ask an adult for help or call or email a classmate for advice.

F. And no teacher still believes that "chewed by the dog" line－even when it's true!

G. In conclusion, no one is expected to stay long, and people have very different learning styles.

    A new urban sport, parkour, is hitting the streets. It has evolved from obstacle course training into a fitness option for young people. In parkour, the outside world is the gym! {#blank#}1{#/blank#} The goal of parkour is a direct route from one place to another. You meet an obstacle, you overcome it.

    Mark Toorock, who teaches the techniques of parkour at his fitness gym, says that parkour is a method to train the body and mind using obstacles as the medium. He says that this new sport is demanding and takes years to master. {#blank#}2{#/blank#}

    But Toorock, who used to be a martial arts expert, says that everyone can benefit from learning the basic skills involved in parkour like running, jumping and crawling (爬行). These are the things that humans used to have to do all the time. {#blank#}3{#/blank#} The original idea of parkour was to return to running and jumping as basic elements in moving from one place to another.

    Georges Hebert, a French navy officer, was so impressed by the effortless athleticism of African tribes that he devised a training method based on running, climbing, jumping, balancing and throwing. The word parkour comes from parcours de combatant, the French term for a military obstacle course. {#blank#}4{#/blank#}

    Dr Kenneth Kao explains that the sport of parkour is not extreme – it is the environment which is extreme and dangerous. Being outside, jumping off railings and flipping over park benches can be quite frightening, so parkour courses in gyms concentrate on practicing all the individual moves to make everything easier. {#blank#}5{#/blank#} However, that is not real parkour because it's indoors with a fixed obstacle. The goal for everyone is to go outdoors.

A. Gyms provide thick floor matting (垫子) for rolling and rubberized boxes for jumping over.

B. The bridges, buildings and railings (栏杆) of each and every city are the equipment.

C. Every action in parkour is natural, so everyone must have the ability to move in this way.

D. Parkour was introduced into china in recent years and has gained popularity.

E. But today, due to modern transport, these basic skills are no longer used on a regular basis.

F. The French word for people who participate in the sport is traceurs or traceuses.

G. Beginners should realize that they won't be jumping over buildings any time soon!