—Don't worry! I'm sure you can do well in it.
—When I heard the news, I felt very pleased.
—I don't know.
A city without cars would be very strange, right? But Venice is such a city.
Venice is in the north-east of Italy. It wasn't built on land, like Beijing or Shanghai, but on more than 110 islands. Seawater is everywhere around the city.
Even so, travel isn't difficult. The waterways have always been the best way to get around. There are 177 waterways and more than 400 bridges that can guide you where you want to go. People in Venice move from place to place by boat. They like to enjoy the scenery and the cool summer night while taking boat trips. They can talk to other people as they go along.
Venice grew out of small islands in saltwater lakes when some Italians escaped from a war over 1, 500 years ago, and built homes there.
Water makes the city special, but it is also a big problem. Sometimes tourists will have such strange experiences. One moment they walk across the Rialto Bridge, and there's nothing special but when they come back to the bridge an hour later, it's underwater and everyone is wearing rain shoes.
Once, people used too much underground water. This made the city get lower little by little. Now the city has gone down by 23 centimetres. Another problem is the rising seawater. The temperature has risen over the years. This has made the ice of the Arctic Ocean (北冰洋) melt (融化).
Every year, high waters hit the city in autumn and winter. When a lot of water comes, more than half of the city is underwater.
Scientists are trying different ways to stop the city from getting even lower. The Italian government has asked some of Italy's biggest companies to build the MOST project, which was planned to be built under the seawater to stop the rising water. Anyway, this project is helping solve the problem.
How many have you visited in China so far?
—Yes. Lights in the tall buildings light up the whole city. It's beautiful.
—I bought a mobile phone in your shop yesterday, but it doesn't______ now.
For a 6-year-old kid, what he or she wants most may be delicious food and enough playtime. Sometimes we think children only have some simple wishes. ______ , a 6-year-old girl in the kindergarten(幼儿园) surprised her teacher.
An Internet user Katt has a little sister called Peyton. Last week, Katt shared her sister's teacher's note(便条) online.Mrs. Petree shared Peyton's act of kindness(善良). It really touched many people's hearts. Here is the thing. Peyton did very well in class and the reward(奖赏)she chose was to sit with a friend at lunch. The teacher thought for sure who Peyton would choose. But Peyton picked a little boy who never got picked for anything. What a surprise! Mrs. Petree said kids learned to be kind when they saw Peyton's kindness. After that, other kids started to play with the boy. The boy is very different now and he's more and more outgoing
After reading the note, Katt thought her little sister was great and that she would make the world better one day.
Computers can do lots of jobs. They can do maths or play music.
You can use a computer to write or to play games. What do you know about the history of computers?
The first computers were very big. They were the size of a room! They were so big that people couldn't have them at home. Early computers could only do easy maths. In the 1930s. Alan Turing had the idea for a computer. His idea made computers do different things.
In 1958, Jack Kilby invented the microchip. It was a totally new thing for people at that time Microchips are tiny but can keep lots of information in a computer. They helped make computers smaller. In the 1970s, computers were smaller and cheaper so people started to use them at home. In the 1980s, computer games were very popular. Lots of people bought computers just to play games.
In 1989, Tim Berners-lee invented the World Wide Web, which is a way to organize information on the internet. With its help, now people all over the world can look for and share information on websites.
—Well, it's great! I visited some _________like the Summer Palace and the Great Wall.
In this August, I had a trip called "Cultural Trip: Germany, Italy & France" to go to Europe with a group of American students.
This was not my first time to other countries, but it was unusual one. Why do I think the trip Unusual? Travel agencies (旅行社)usually have travel buses for tourists, What about us ? For five days, we traveled along Germany by bike. We were tired but happy! For some times on the trip, something went wrong with someone's bicycle. But at the end of the trip, everyone was safe and happy.
In Italy, we went to a kitchen to learn to cook Italian dishes, we made a great dinner and ended by making the chocolate cake. I gave full marks to that night!
France was the last stop, we went to the capital of France, Paris. We went to the Eiffel tower and we even got onto it. The tower is 324 meters tall, It has three levels(层) for visitors. There are restaurants on the first and second levels. The top level is 276 meters above the ground. If you climb from ground level to the first level, you need to climb over 300 steps. There are another 300 steps from the first level to the second level. That's why people usually get onto the top level by lift.
—I'm afraid not He is having a meeting. I'll ask him to call you back when he is free.
— No, they can only drink beer for free on weekends.
Do you know all the living things need to sleep? People can sleep in their (house) to keep safe. But to some animals, it's not safe for them
(sleep) sometimes. When they sleep, other animals may hurt or kill them. Animals have to think of many ways to protect (they) so that they can sleep well.
Seals(海豹) need to (breath) air, but that doesn't stop some of them sleeping underwater. They hold their breath and dive deep to sleep. It can help these seals get away from some (danger) animals.
Some ducks sleep with just half of their brains. They often sleep in a line. The ducks at both ends help to keep group safe. They keep one eye open to watch for danger. The ducks sleep deeply the middle with both eyes closed.
Some seabirds sleep while they are flying. These big birds spend most of their lives (fly) over the sea. They are in danger if they are on the water, they'll be safe in the sky. They can fly for many hours without flapping their wings.
Horses often sleep while standing up. Their legs lock (固定)in the place so they don't fall over. A horse can run from danger (quick) if it is already standing. If a horse is lying down, it needs a long time to get up.
—OK, let me drive you there, or you will be late.
—I know. I have already had a toothache now.
—Yes, at six. So we must _____before five.