Zoo animals VS animals in the wild

    Zoo animals usually live longer than their wild counterparts. This is because they have access to medical care and better nutrition in zoos. Moreover, there is a lack of predators(捕食者).{#blank#}1{#/blank#} Elderly wild animals lose their strength, ability to find and digest food and often lose their social standing in their species social structure. Zoos are learning how to care for old animals.

    Boredom is a big problem for animals in zoos and something animals in the wild do not have to face. Animal experts believe that a small place produces boredom.{#blank#}2{#/blank#} They also provide companions and hide pieces of food so the animals have to search for it as in the wild.

    {#blank#}3{#/blank#} A case in point is the Asiatic wild horse. The species was hunted to extinction in the wild by 1969. The entire world population now lives in zoos and nature preserves. The largest population is kept at the National Zoo in Washington. D.C. All of those animals were zoo-born.

    Animals living in the wild may come into contact with people. The animals may hunt livestock(家畜)or eat farmers' crops.{#blank#}4{#/blank#} In good zoos, people can see that these animals are not just able to make trouble, but lead complex lives. This can help people save the animal and the habitat needed to keep the animal alive in the wild.

    Animals often reproduce better when they are in the wild.{#blank#}5{#/blank#} One of the remarkable examples is the female giant panda. Using artificial(人工的) means has helped raise the worldwide panda population. Also, by trying to recreate the animal's natural living conditions as much as possible, zoo animals will breed.

A. The goals of zoos have changed.

B. However, some animals are an exception

C. If they live in the wild, they have to battle against them.

D. As a result, they are considered harmful and are hunted.

E. Even so, it often leaves one to wonder if the animals live well.

F. For some species, living in zoos is the only way the species can survive.

G. So good zoos have replaced all metal cages for those animals that used to live in large areas.

    Most people will tell you that without a cup of coffee in the morning, they cannot function. Coffee is a good drink when consumed in right amount. {#blank#}1{#/blank#}

    Legend says that Kaldi, an Ethiopian, discovered his goats enjoy eating coffee plants. Curious, he tasted the leaves and began to dance around. A passing monk (僧侣) witnessed the scene and took some back to his fellow monks. Later that night, the monks experienced extreme inspiration. {#blank#}2{#/blank#} Soon Arabia was roasting coffee beans. By 1000 A.D. Muslims were drinking coffee to stay awake. A merchant from Venice introduced coffee to Europe in 1615. By 1696, the Dutch started growing the coffee bush in Java. By 1723, coffee plants were introduced to the Americas. Today, coffee is the most popular drink in the world.

    Caffeine (咖啡因) is the major chemical in coffee. Caffeine poisoning can occur if more than 400 milligrams of caffeine is drunk in a short period, which is about four to five cups of coffee. {#blank#}3{#/blank#} So it should be avoided before bed.

    {#blank#}4{#/blank#} Studies have shown that it helps cognitive (感知) skills in elderly women. Women who drank three cups of coffee daily scored higher on memory tests than women who drank one cup of coffee.

    Large amounts of coffee can cause nervousness, worries and heartburn. However, if mixed with milk, it is fine. {#blank#}5{#/blank#} The more you drink, the more you depend on it. For some people, just one cup of coffee a day is OK.

A. Coffee has many benefits.

B. Coffee can be addictive like any drug.

C. Caffeine will also cause sleep difficulty.

D. The caffeine in coffee can actually help fight disease.

E. However, it is considered harmful if taken in large amount.

F. Drinking coffee while you have this kind of disease will make it worse.

G. Whether the legend is true or not, the discovery of coffee dates back to 800 A.D.

    Eating together as a family is a rare thing these days. {#blank#}1{#/blank#}, Once I start my own family, I'll definitely do anything possible to establish a tradition of eating together as a family. Here's why.

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    When you eat together as a family each day, your children will learn to respect both parents. They know you two are busy, but still find time to share meals with them.

    Learn good table manners

    When you have small kids, eating together as a family is an easy way to show and teach them good table manners, of course, if yours are good. {#blank#}3{#/blank#}, how to be on time so that other family members don't starve, and how to behave at the table. You want to be proud of your grown-up kids, don't you?

    Create wonderful memories

    {#blank#}4{#/blank#}. They will know how important it is to eat together as a family, and will definitely teach their kids to do the same. Your family tradition of sharing meals together as a family will pass down from generation to generation.

    There are many benefits of eating together as a family that many of us didn't even think about. Teach your children to appreciate family time and food, and show them how to behave well at the table. {#blank#}5{#/blank#}.

A. hey will thank you down the road

B. Your children will learn when it's best to eat

C. Respect both Mom and Dad

D. Parents are always busy and kids have their own plans

E. When you eat together, you do eat those healthy meals too

F. When your children grow up, they will never forget those funny and precious family mealtimes

G. It's an excellent opportunity to become a family unit and improve your relationship with kids

Mystery of Mosquito Flight

    The mosquito is a troublesome and dangerous insect. Their bites itch and can carry dangerous diseases, like malaria, Zika virus and yellow fever. Recently, researchers from Britain and Japan discovered how mosquitoes fly. {#blank#}1{#/blank#}

    Mosquito wings are small and have an uncommon shape.{#blank#}2{#/blank#} So, how is their flight possible? The team of scientists from Britain and Japan solved the mystery. They used high-speed cameras and computer images to understand the mechanics of how the insect moves its wings to stay in the air.

    {#blank#}3{#/blank#} They set up eight super-high speed cameras that take 10,000 images each second. Simon Walker, a researcher at the University of Oxford, explains that normally at least two cameras are needed to record an insect, so they've got enough views of an insect. With two camera views they can then take any point on an insect and calculate its 3-D coordinates (三维坐标).

    Mosquitoes can spread diseases. The insect has two antennae, or tall, thin organs on its head that it uses to feel things. But its antennae and six legs make it difficult to take clear images of the wing movements. {#blank#}4{#/blank#} The extra cameras let the researchers see that the mosquito's wings move eight hundred times each second. That is four times faster than many insects of a similar size.

    Mosquitoes fly by moving their wings in several different directions. The thin top edges of their wings move forward first and then they change direction and move down. The movement looks as if the wings are drawing the number eight. {#blank#}5{#/blank#} Walker says that existing unmanned flying devices do not work very well outside because wind can affect their flight.

    "Insects, on the other hand, deal really well with even quite windy conditions. So understanding how they can do this is going to be advantageous to us." These researchers say that understanding how mosquitoes fly might help find ways to stop them from spreading diseases.

A. Because of this, it is hard to believe that they are able to fly.

B. Mosquitoes evolved from other insects about 226 million years ago.

C. So, the team needed to use eight cameras to view the wings from many directions.

D. Researchers at the University of Oxford took images of mosquito wing movements.

E. Many measures have been tried for mosquito control, for example, getting rid of breeding places.

F. This knowledge, they say, help find ways to stop mosquitoes from spreading diseases in the future.

G. The research team believes the mosquitoes' wing movements could help inventors design new flying devices.

    How to prepare for an exam is a big question that you always ask yourself. Here are some tips that may help you.

    Never fear or hate exam and be confident.

    Some students study well but still may be much afraid of exams and due to this reason they get upset and won't be able to get marks.{#blank#}1{#/blank#}You have to be confident and it is of great help for you to gain success.

    Prepare a good timetable.

    Prepare a timetable before starting the study.{#blank#}2{#/blank#}Difficult subjects can be given more time and easier ones less, but most importantly you should spare some time for rest.

    Select a proper atmosphere for studying.

    Studying atmosphere plays a very important role.{#blank#}3{#/blank#}So pick a place where you feel comfortable. That is where you feel relaxed and can pay attention to what you are doing. Make sure that while you are studying a subject you are focusing on it only. So keep the books of other subjects away from your eyesight so that you won't be upset about all the things you have to learn.

    Make notes while studying

    This is a very important point. While studying, make small notes. The note should be short and clear to make the review easier.{#blank#}4{#/blank#}Yet don't try to cover everything in it.

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    On the night before exam you have to sleep well, at least 6 hours and not more than 8 hours. Remember this will have a great effect on your exam. And have your food as in your daily diet.

A. Sleep well and eat well.

B. So try to present answers in points.

C. This should include all the subjects.

D. Can anyone study well while others around are watching TV?

E. A good note shall include the most important points.

F. This will be of great use to your coming exams.

G. So leave all your fears and free your mind before starting the study.

How to Remember What You Read

    Reading is important. But the next step is making sure that you remember what you've read! {#blank#}1{#/blank#} you may have just read the text. But the ideas, concepts and images（形象）may fly right out of your head. Here are a few tricks for remembering what you read.

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    If the plot, characters, or word usage is confusing for you, you likely won't be able to remember what you read. It's a bit like reading a foreign language. If you don't understand what you're reading, how would you remember it? But there are a few things you can do... Use a dictionary; look up the difficult words.

    Are you connected?

    Does a character remind you of a friend? Does the setting make you want to visit the place? Does the book inspire you and make you want to read more? With some books, you may feel a connection right away. {#blank#}3{#/blank#} How willing are you to make the connections happen?

    Read it; hear it; be it!

    Read the lines. Then, speak them out loud. And, put some character into the words. When he was writing his novels, Charles Dickens would act out the parts of the characters. He'd make faces in the mirror and change his voice for each character. {#blank#}4{#/blank#} 

    How often do you read?

    If you read frequently, you'll likely have an easier time with remembering what you're reading and what you've read. {#blank#}5{#/blank#} As you make reading a regular part of your life, you'll make more connections, stay more focused and understand the text better. You'll learn to enjoy literature- as you remember what you read!

A. Are you confused?

B. Practice makes perfect.

C. What's your motivation?

D. Memory is sometimes a tricky thing.

E. Marking helps you remember what you read.

F. But other books require a bit more work on your part.

G. You can do the same thing when you are reading the text!