As we know, all living things have to eat food. For a man, a tiger, a fish, a bird, or even a worm, food is necessary. Generally speaking, all living things are sure to die without food. In every part of the world, many different kinds of animals share living places and live in communities (群落) together. They are connected in a food chain (链).

 Within a food chain, some living things are producers and some are consumers (消费者). Plants are producers because they use sunlight, soil and other things to make their own food. Animals are consumers because they have to eat other animals or plants.

There are four different kinds of consumers in the animal kingdom. A carnivore is an animal that only eats other animals. An herbivore is an animal that only eats plants. An omnivore is an animal that eats both plants and animals. A scavenger is an animal that eats dead animals.

 Look at the picture. It is an example of a food chain. The food chain shows the order that animals eat each other in a community. In the picture, you can see what animal or plant is food for another animal. See? A leaf is food for a grasshopper, which then becomes food for a hungry mouse. The mouse is food for a snake. The snake is eaten by an eagle. In this way, all of these animals are connected.

根据上文内容判断正 ( T ) 误( F )

    There are many kinds of 1. transportation now. Which one do you like best, by train, by bus or by plane? Now let's look at these three kinds of transportation. 2.The fastest way to travel is by plane. If you want to save time, 3.乘火车是最好的选择. A plane ticket can also be easier to book, and there are 4.(hundred) of planes leaving half an hour to everywhere. But it is much 5.(expensive) than traveling by train or by car. Many people prefer to traveling together by train. Because the train is cheaper than the plane and you can see the beautiful scenery out of the windows. But sometimes people are very noisy on the train. And it's very small and crowded inside the train. Taking a car is great. You can feel freer in your own car and you can move quickly from place to place at any time you like. 6.But sometimes you may be late because of the heavy traffic  .You have to pay for a car park and petrol . Cars are less comfortable than trains. You can't sleep or relax when you drive. Cars pollute the air more than trains, too.

    Today is Saturday．It's also the Teachers' Day, Lily and Tom's mother's festival．They get up early in the morning and want to help their mother do the housework．They first clean the room and then wash the clothes．And then they make breakfast for their mother Lisa．

    It takes Lily and Tom a long time to make the breakfast．They make a chicken hamburger and some salad．These are Lisa's favourite food．They also prepare(准备) a glass of milk．They think it's healthy for their mother．Then they go to their parents' room with the food and drink.

    Dad sits on the sofa and reads a newspaper to Lisa．There is much interesting news(新闻) in it．Lisa also thinks it is fun．They seem very happy．“Good morning, Mum and Dad,” say Lily and Tom．Then they walk to their mother and say: “Mum, Happy Teachers' Day!”

Lisa looks at the children and the breakfast．“Thank you so much!” Lisa feels very warm now.

    One fine winter day some ants were working in the field . They were very busy . Just then a grasshopper (蚱蜢) passed by . “ Good day ， kind ants . ”said the grasshopper . “ I am very hungry . Won't you lend (借给) me a little food ?( A)  我没有东西吃了。I  will pay you before the next autumn .” “ Have you no food of your own ? ( B) Why didn't you gather any food during the summer ? You know there was much food in the field this summer . What were you doing then ?” asked an old ant . The grasshopper answered ， “ I( C )       ( sing ) all day and night during the summer . And I  had no time to gather any food .” “ Well， then，”said the ant .“   （D）   You only played and did not work during the summer . We'll never lend you any food .” （E） And the ants went on working .

    While you are at the bookstore, you may be faced with a difficult decision: e-books or paper books? Each one has its advantages and disadvantages. Making the best decision depends on a number of factor (因素).

    An e-reader can carry a whole library wherever you go, which is great for travelers or those who always want a choice of reading material Although e-readers are convenient, high levels of screen brightness from an electronic device(电子设备) can cause eye problems. A study in the Information Science Research found that young people preferred e-readers, like smart phones or iPads. That's why most teenagers are short-sighted.

    Many book lovers still prefer paper books and value the feeling of them. Paper books are very well designed, they look and smell good, and they carry with them a more human touch. Avid (热衷的)readers prefer reading on paper. Perhaps this is their choice because paper books give them a sense of ownership. It is reported that reading on paper rather than an electronic screen is better for memory and focus. But paper books are heavy and they are not convenient to carry.

    Which is your decision, an e-book or a paper book?

    One day, when Sunee reached her house, she saw a brown package(包裹). She ran inside the house with her package and showed it to her grandmother. Sunee opened the package. As she did, she noticed there was Thai writing on the box. This package had come from her aunt in Thailand.

    Inside the box, Sunee saw something uncommon. It was a red silk umbrella. She had never seen anything like it! Next to the umbrella she found a silk purse (钱包).They were both beautiful.

    "Shipping a package overseas used to take a lot of time," said Grandmother. "Packages traveled by train and ship. It could take many months to get a package from across the ocean. How long did your package take to arrive?"

    Sunee and her grandmother looked at the postmark (邮戳). It showed that the package had been sent eight days ago. "That's fast!" said Sunee.

    Her grandmother agreed. "We have resources (资源)now that we didn't have years ago. Now, packages are flown across the ocean. Because airplanes travel so fast, packages arrive very quickly. Now our economy (经济)depends on fast delivery (快递)!"