One cool April 22 morning, people started the day as usual. Yet it was not a normal day. What's so special about April 22? The answer is because it is Earth Day. People all over the world celebrate this important day. The idea of having a special day to celebrate the Earth began in 1960s. Life was very different then. {#blank#}1{#/blank#}Most people had no idea how dirty our air and water were.

    On April 22, 1970, twenty million Americans joined the first Earth Day activities. This showed that people really want to do something for the environment. Since then laws have been passed   to protect the air, water, land, and animals. The vehicles(汽车) such as cars and buses you ride  in must pass tests to make sure they don't cause too much pollution. Thanks to it, cars today give out about half as many bad chemicals as they did in the past. {#blank#}2{#/blank#}

    {#blank#}3{#/blank#}It's a good thing because they have got a lot of help. The Cuyahoga River in Ohio was so polluted that rubbish and oil on the river even caught fire! Today, the river is cleaner. It no longer burns. {#blank#}4{#/blank#}

    Now the celebration has spread to other countries. More than 175 countries take part each year.

    In 2007, people in China paid much attention to this big problem. People were throwing away one million plastic bags( 塑料袋) a day! People had "Bye-Bye Throwaway Culture Week." They wanted everyone to see how polluted it was to throw away so many plastic bags. In 2008, China passed new laws against them.

    Every April 22, millions of people get together to clean and protect the Earth. {#blank#}5{#/blank#} Our job is to put this knowledge to work. You can help keep our planet healthy, too!

⑴{#blank#}1{#/blank#}The students in the USA started to take tree climbing in the 1980s.Now over 100 schools offer tree climbing courses to students in the USA.

⑵{#blank#}2{#/blank#}All primary and middle schools in Hainan will set up swimming courses in 2019.This year the government is busy building swimming-pools for schools-at least one for each town, hoping that every student will be able to swim before they leave school from 2020on.

⑶{#blank#}3{#/blank#}An ice theme can be found at Hotel de Glace in Canada. In winter, you can get a fireplace and a private spa(温泉)in the rooms. The ice hotel has new rooms each year. This winter, it will build a room with the theme of Disney's movie Frozen.

⑷{#blank#}4{#/blank#}My birthday is on April 16th.I will go to the church on my birthday to get blessings(祝福)from my parents and give sweets my friends. I will go for a trip with my parents in our car and have a wonderful birthday.

⑸{#blank#}5{#/blank#}In the beginning of the video, an old man named Li Yubao living in a faraway village asked his grandson on the phone what gifts he wanted for the Spring Festival, but only heard the word "Peppa(佩奇)" because of the poor mobile signal. So, the man begins an interesting journey to discover who Peppa is. With the help of neighbors, the old man made a Peppa model. When his grandson saw it, he was surprised

What kind of story is most exciting? What story keeps you reading until the very end? The answer may be the detective (侦探) story.

Detective stories are among the most {#blank#}1{#/blank#}, read and discussed stories in the world. They can be novels, animation (动画) and movies. When we start reading a detective story, we always wish to find out the truth {#blank#}2{#/blank#} we reach the end. But it can be quite difficult to solve the problem as quickly as the detective does. Paying attention to the following elements (元素) may be {#blank#}3{#/blank#} to find the truth.

Motivation—Motive is the reason behind a crime. Does this person have a motive? This is a question always asked by detectives. To answer that, detectives would look into one's personal {#blank#}4{#/blank#} and past experience. People {#blank#}5{#/blank#} a motive can be trusted.

Suspect—Suspects are those who may have done the crime. {#blank#}6{#/blank#} there is more than one suspect in a case. Detectives have to find out the real {#blank#}7{#/blank#} among them.

Clue—Clues are the most important things in finding out the truth. Clues can be very small and hard {#blank#}8{#/blank#}, such as hair, mud or a piece of paper from a diary.

Alibi—An alibi is a special kind of evidence (证据). It means you are not being at the crime scene when the crime took place. For example, if you are having dinner with a friend when the crime happens, your {#blank#}9{#/blank#} words are your alibi. However, an alibi can not always be {#blank#}10{#/blank#}. Your friend may have made up a story to protect you.

Detective stories are like puzzles. Following the elements of motive, suspect, alibi and clue can help us see what the detective see and find out the truth in the end.

If you want to be a better reader, what should you know about the speed of reading? Some people read very quickly and others read very slowly. But which one is better? The quick reader may be a good reader when he reads a storybook for fun. But he may not be able to slow down to read instructions(说明书) carefully. The slow reader may be a good reader. But he may spend too much time reading a story for fun. So the reader who reads everything quickly or the one who reads everything slowly isn't really a good reader. Knowing why you are reading or what you are reading can help you to know whether(是否)you need to read quickly or slowly. Some things should be read slowly. You must read these things slowly all the time to understand and remember everything important. Examples(例子)are instructions for making or doing something. Also, math books, science and even some storybooks are full of important information. However, some things should be read quickly. Examples are picture-books for enjoyment, letters from friends , and some quick news from newspapers.

In some of your reading, you must change your speed from fast to slow and slow to fast. You will need to read some pages quickly and then slow down and do more carefully reading when you come to important ideas. So, knowing when to change your reading speed is one important symbol of being a good reader.

When spring comes, flowers begins to bloom(开花). Signs of new life are everywhere. For students in the US, this means a vacation is on its way. {#blank#}1{#/blank#} So while students from one town are on vacation, their neighbors in the next town might have classes as usual.

Spring vacation is also known as" spring break". During this time, students have one to two weeks off from school.{#blank#}2{#/blank#} Some schools plan the vacation to take place on the same week as Easter(复活节) . Not all schools do this, though. Since Easter is always on a Sunday, students who celebrate the holiday do not need to worry about missing school.

{#blank#}3{#/blank#} Teachers usually don't give homework over the break, so students can spend their days and nights free from school- time stress.

There are lots of ways to spend the time. Some families go on vacation, visit a new state or even a new country. {#blank#}4{#/blank#} Or students may enjoy the break by relaxing at home, reading books and watching movies, or visiting friends' houses.{#blank#}5{#/blank#} On a ten- day trip, for example, students might go on a tour through Spain, France, and Italy. These trips are often expensive, but they give students an unusual chance to see other parts of the world.

When students return to school, they are relaxed and ready to finish the school year.
 

I'm Rose, today is my first day at school. I am a new student. My father drives (开车) me to school in the car.

I have an orange schoolbag. In my schoolbag, I have five books, six notebooks and a pencil box. The pencil box and the schoolbag are the same (相同的) color. Three pens, four pencils, two erasers and a ruler are in my pencil box. And I have a lunch box. It is orange, too.

My classroom number is 402. It is big and tidy. There are 38 students in my class. But there are 39 desks and 39 chairs in the classroom. Why? The teacher also has a desk and a chair. The students' desks are brown. But the teacher's is yellow.