What time of day can you think most quickly? Are you a morning person?" Or does it take you a few hours to get your brain going? A lot of recent research suggests that we should pay attention to our body clock. It can tell us what time of day we can perform best at.

    Many people work best later in the morning. This is because the body's temperature takes time to rise through the day. Taking a warm shower when you wake up can help your body's temperature rise quickly.

    But everyone's body clock is different and some are special. Morning people will get up early and work better early in the day." Evening people will work later, but work better towards the end of the day.

    Research shows that we're better at some activities at certain times of the day." Physical performance is at its best between 3p. m. and 6p.- m.-,- so it's better to exercise later in the day.

    Between noon and'4p. m. , people begin to pay less attention. This is because we think less quickly after, a big meal. Research also shows we become sleepy around 2 p.m. This is why people in Spain take a short sleep in early afternoon.

    Finally'it is best to eat when we' re active. This allows our body to burn calories (卡路里) better and stops our blood sugar levels from getting too high.

    Do you know what makes lightning (闪电)? {#blank#}1{#/blank#}

    Lightning strikes happen when ice and water in clouds rub (摩擦) together, and cause atmospheric (大气层的) changes. When this happens, it creates a static charge (静电). Lightning can strike inside the cloud, between two clouds or between a cloud and the earth. {#blank#}2{#/blank#}

    Lightning can be very dangerous. Every year, lightning kills people because it can start big fires or because it reaches a temperature of 28,000℃. About 1,000 people are hit by lightning every year in the United States, and about 100 of them die as a result.

    {#blank#}3{#/blank#}Scientists think that there are more than three million lightning strikes every day in the world. An American man, Roy Sullivan, who worked in a park, survived from the most lightning strikes. {#blank#}4{#/blank#}And he keeps the highest world record.

    Lightning is sure not something to play with. When lightning strikes, it's best to stay inside a large building. {#blank#}5{#/blank#}Also, do not lie down on the ground, or the electricity may go through you and cause a heart problem.

Good and bad manners（礼仪） make up the social rules of a country.They are not always easy to learn because they are often not written in books.Let's see some social rules in Britain.

In the past，most British women didn't go to pubs（酒吧） because it was not considered good behavior for a woman.Now both women and men can drink freely in pubs.

Visitors to Britain often see British people wait in line in public places.It is considered impolite to get on a bus without waiting your turn in line.And if you don't wait your turn，the other people in line will probably warn you to line up loudly.

In some countries it is considered bad manners to eat in the street.However，in Britain it is common to see people having a snack while walking down the road.

British people used to be surprised to see young children in restaurants in the evening because children were not usually taken out to restaurants at night.These days children are playing a more active role and they are now accepted in many restaurants at night.

In recent years，many British companies have banned smoking in their offices and even in the whole buildings.Smoking is also banned on the London Underground，in cinemas and theaters and on most buses.It can be seen less and less in public places.It is also considered bad manners to smoke in someone's house without asking the owner.

Social rules are an important part of every country.The British have an expression for these"unwritten rules"：When in Rome，do as the Romans do.

Jobs in Animal Care

Do you love animals? Do you think people must help and protect animals just like humans? Do you want to spend your days h{#blank#}1{#/blank#} animals? If you answered "yes" to any of these questions, maybe you should consider a job in animal care!

ANIMAL RIGHTS(权利) OFFICER:

Animal rights officers make sure that people treat animals properly. They visit homes, places where animals are bought and sold, such as zoos, and animal hospitals. They check to make sure that the places are clean, that the animals are getting proper nutrition(营养) and that they have enough s{#blank#}2{#/blank#} to climb around and explore. Sometimes an animal rights officer will appear in court to protect the rights of an animal.

ANIMAL CONTROL OFFICER:

To be an animal control officer, you must be in very good health because the job is an active one, i{#blank#}3{#/blank#} getting animals out of dangerous situations. For example, it's not always easy to get a cat down from a tree. Other times, animal control officers must take a s{#blank#}4{#/blank#} animal to the hospital for treatment(治疗). These animals are often in great pain, and are afraid and difficult to control.

ANIMAL DOCTOR:

An animal doctor is called a 'veterinarian' or 'vet'. Some animal doctors work for zoos or animal hospitals. Others, often called 'small animal doctors," treat smaller animals l{#blank#}5{#/blank#} dogs and cats. Many have their own private offices. Vets do most of the s{#blank#}6{#/blank#} things as doctors do. They take the animal's temperature, give injections(注射), and take X—rays. They also decide what kind of medicine a sick animal may need. If an animal w{#blank#}7{#/blank#} too little, the doctor may use a feeding tube(管) to make sure it gets enough nutrition. It takes six to seven years of higher education to become a doctor of veterinary medicine.

Children love spring for different reasons. Let's have a look.

Hi, Friends! I'm Peter from Hungary. 1 is my favourite season? Well, I like spring best 2 after the long cold and wet days, it is warm again. The weather changes quite a lot. It is cloudy sometimes but the sun shines 3 most of the time. When I go out, I 4 see lovely spring flowers everywhere.

Hi, I'm Li Hua from China. Spring is my favourite. It's the best time for family activities. And Spring Equinox(春分) is in this season. It was 5 March 20 last year and there was great fun in my house. I 6 the eggs in many colors with my family. 7 also tried to help the eggs stand on their ends. It was really funny!