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 finish 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. Cook completely

B. This key tells about the importance of washing

C. Eat healthily

D. They can live where we make food

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

    Gratitude(感恩)is a social feeling．Many people see it as relationship—strengthening because it requires us to see how we've been supported and recognized by other people．

    First，it's belief of goodness．We are convinced that there are good things in the world，gifts and benefits we've received．The second part of gratitude is figuring out where that goodness comes from{#blank#}1{#/blank#} It doesn't come from anything we necessarily did ourselves．Instead，we acknowledge that other people gave us many gifts to help us achieve the goodness in our lives{#blank#}2{#/blank#}Of course，there are various important reasons．Here are some of them．

    Gratitude allows us to celebrate the present{#blank#}3{#/blank#}We notice the positives more，and that enlarge the pleasures you get from life．Instead of adapting to goodness，we celebrate goodness．

    Gratitude blocks negative feelings．You cannot feel envious and grateful at the same time{#blank#}4{#/blank#} If you're grateful，you can't hate someone for having something that you don't．Those are very different ways of connecting to the world，and sure enough，research has suggested that people who have high levels of gratitude have low levels of negative feelings．

    {#blank#}5{#/blank#}That's because when you're grateful，you have the sense that someone else has provided for your happiness．You notice a network of relationships of people think it's worthwhile to help you get to where you are right now．Realizing someone has seen the value in you transforms the way you see yourself．

A．They're contradictory feelings．

B．It strengthens positive feelings．

C．Gratitude heightens your sense of self-worth．

D．Most of the time，it makes you feel confused．

E．Gratitude allows us to participate more in life．

F．So why gratitude has such effects on people's lives?

G．We recognize the sources of it as being outside of ourselves．

    Worry problems are everywhere in our daily life. How to solve them? The answer is that we must equip ourselves to handle different kinds of worries by learning the three basic steps of problem analysis. The three steps are：

    Get the facts

    Why is it so important to get the facts? Unless you have the facts, you can't possibly attempt to solve your problem intelligently. Without the facts, all you can do is wondering around in confusion. {#blank#}1{#/blank#} When you are worried, your emotions are riding high. But here are two ideas that can help you see the facts in a clear and objective way.

    When trying to get the facts, you can pretend that you are collecting this information not for yourself but for some other person. This will help you to take a cold and fair view of the evidence. You can also pretend that you are a lawyer preparing to agree.{#blank#}2{#/blank#} You will generally find the truth lies somewhere in between.

    Analyze the facts

    {#blank#}3{#/blank#} And write out all the various steps you could take and then the probable consequences (后果) of each step. For example, what am I worrying about? What can I do about it? Here is what I'm going to do about it. After carefully weighing all the facts, you can calmly come to a decision.

    {#blank#}4{#/blank#}

    Unless you take your action, all you face—finding and analysing—is a waste of energy. How can you break the worry habit before it breaks you? Move worry out of your mind by keeping busy.{#blank#}5{#/blank#} Accept what can't be avoided. If you know a situation is beyond your power, say to yourself: "It is so; it can't be otherwise." Don't permit little things to ruin your happiness. Try to develop a mental attitude that will bring you peace and happiness.

A. Act on that decision.

B. It is not an easy job to get facts.

C. Decide how much anxiety a thing may be worth.

D. Plenty of action is one of the best ways to cure worry.

E. There comes a time when you must decide and never look back.

F. Try to get all the facts both on your side and the other side of the case.

G. Whenever you are worried, write down the questions that make you worry.

    Do you know that there's a new frontier in 3D printing that's beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. {#blank#}1{#/blank#}

    Food production

    With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake. {#blank#}2{#/blank#} —it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to "re-create forms and pieces" of food that are "exactly the same," freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.

    Sustainability

    According to a new study, the global population is expected to grow to 9.6 billion by 2050, and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels. {#blank#}3{#/blank#} 3D food printing could probably contribute to the solution. 3D printing can reduce fuel use and emissions. Grocery stores of the future might stock "food" that lasts years on end, freeing up shelf space and reducing transportation and storage requirements.

Nutrition

    {#blank#}4{#/blank#} Hod Lipson, a professor at Columbia University, said, "Food printing could allow consumers to print food with customized nutritional content, like vitamins. So instead of eating a piece of yesterday's bread from the supermarket, you'd eat something baked just for you on demand."

    {#blank#}5{#/blank#}

    Despite recent advancements in 3D food printing, the industry has many difficulties to overcome. Currently, most ingredients must be changed to a paste(糊状物) before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad.

A. Challenges

B. Opportunities

C. And the industry isn't stopping there.

D. Sustainability is becoming a necessity.

E. Future 3D food printers could make processed food healthier.

F. Here are some new ways to produce 3D printing.

G. Not everybody can do that.

Being a volunteer

    What can you do to help people? The answer is-to be a volunteer! {#blank#}1{#/blank#}

    Help yourself by helping others

    When you volunteer to help others, you can helping yourself. {#blank#}2{#/blank#} Lots of people really enjoy volunteering. Doing volunteer work means one important thing: You make a difference in the world. So where do you start? {#blank#}3{#/blank#}

    Things to do with family members

    Volunteering is a great way to have fun with your family. Talk to your parents, brothers, or sisters and see what they might be interested in. Find something you all agree on. You can do the things as a family like cleaning up a park and planting trees or flowers in your local community（社区）

    Invent your own opportunity

    {#blank#}4{#/blank#} You can make and sell products, and donate（捐赠）the money. Volunteering gives kids a taste of responsibility. Volunteering can also help kids learn important things about themselves-like what kind of things they're best at. A volunteer job can even help some kids decide what they want to do when they grow up. {#blank#}5{#/blank#} Make a plan to start volunteering today!

A. Why not come?

B. School is a good place to start if you are looking for volunteer ideas.

C. Volunteering means to spend time helping others.

D. If you're upset, doing something can be a great way to calm yourself down.

E. Kids can come up with their own ways to raise money or provide needed services.

F. So what are you waiting for?

G. Clean up a school or other public buildings.

    "You are what you eat," goes an English saying. But actually, you are what you drink. Why? Because 75% of your body is water! {#blank#}1{#/blank#} When we don't give our bodies enough water, our organs cannot work properly. We are also easier to catch a disease. When we are sick, drinking plenty of water should be one of the first things we do. {#blank#}2{#/blank#}

    Is your body asking for more water?

    If you experience headaches, sleepiness, allergies or dizziness (头昏眼花), your body might be telling you to drink more water. {#blank#}3{#/blank#}

    Even problems such as nervousness or forgetfulness can be caused by lack of water. In addition, the medicines that treat these illnesses can sometimes dry out your body further. The more water you are lacking in, the worse your health will be-no matter how much medicine you take. {#blank#}4{#/blank#}

    How much water is enough for you?

    Most experts suggest drinking at least 8-ounce glasses of water every day. However, if you weigh more than 128 pounds, you need even more water. Drink an extra glass of water for every 15 pounds of body weight.

    Drink more water in the hot summer months and when you exercise to replenish (补充) the water loss through sweating. Caffeine makes your body lose water very quickly. So drink extra water if you drink beverages such as coffee, tea and soda.

    Helpful tips

    Try these tips to help yourself drink more water.

    Don't wait until you are thirsty to drink. {#blank#}5{#/blank#}

    Plan to have enough water.

    Carry a bottle of pure water with you wherever you go.

    Don't hesitate by frequent trips to the toilet.

    Drinking plenty of water can take as much time as you need and prevent serious illness in the future. So pour yourself a glass of water and drink up!

A. Drink water occasionally.

B. All kinds of drink will contribute to your health.

C. If you're thirsty, you're already lack of water.

D. Instead, we usually depend on drugs to make us well.

E. Lack of water may be the real reason for your sickness.

F. Therefore, it is important to listen to your body when it asks for a drink!

G. With this in mind, it's no surprise that drinking enough water is crucial for good health.