Do you know why different animals or insects have their special colors? Colors are used mainly to protect themselves.
Why can’t some birds easily catch locusts（蝗虫）? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.
If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters. This is because they have the colors much like the trees.
Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.
【小题1】 From the article we learn that locusts 　　　　　　　　　.

Do you know 3D movies? When you see one, it’s like the story is happening in front of you, and you are a part of it. 3D movies are amazing to watch, but do you know how to make them, and why you need to wear a pair of 3D glasses? To understand these questions, let’s do an easy experiment.
Put a finger in front of your eyes.
Cover your left eye and look at the finger.
Cover your right eye and look at the finger.
What do you see? The finger you see with your left eye is in a different position from the one you see with your right eye. This means you get two images(图像) when you look at something with both your eyes. To make a 3D movie, people have to get two images at the same time, so they use two video cameras. When playing a 3D movie, they use two projectors(放映机) at the same time. This brings two images together on the screen. Then, we use 3D glasses to separate(分离) the two images(1). One image enters one eye and the other image enters the other eye.
Then our brains put the two images together. This way, we get 3D pictures(2).
【小题1】判断正误（“T”表示正确，“F”表示错误）You are a part of the story when you see 3D movies.
【小题2】完成句子3D movies are exciting to watch, but you need to ____________________________.
【小题3】简略回答问题 How do people get two images at the same time to make 3D movies?
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【小题4】划线句子(1)提问_______________________________________________________________________
【小题5】将文中划线句子(2)译成汉语。_______________________________________________________________________

Do you know the word “brunch”? On weekends, many people like to have brunch—late breakfast or early lunch. People usually have brunch between 10:00 a.m. and 2:00 p.m. on Sunday because they like to get up late after a week’s hard work and they want to enjoy brunch with their parents, children or friends. That is a relaxing and interesting way of eating for most families.

Today brunch has become the most popular in big hotels. People can ask for it or cook it themselves. To make it look like both breakfast and lunch, people choose to have lots of dishes. You can often see the following food on the table: meat, eggs, fruit, vegetables, orange, and tea.

按要求完成下列各题。

1. When do people usually have brunch? （根据短文内容回答问题）

2.What do people think of eating brunch?（根据短文内容回答问题）

3.Do people usually eat much for brunch?（根据短文内容回答问题）

4. 从短文中找出与下面句子画线部分意思最相近的短语。

Many people like to have brunch.                                               

5.In the passage, the underlined word “it” refers to (指)                           .

Do you know 3D movies? When you see one, it’s like the story is happening in front of you, and you are a part of it. 3D movies are amazing to watch, but do you know how to make them, and why you need to wear a pair of 3D glasses? To understand these questions, let’s do an easy experiment.

Put a finger in front of your eyes.

Cover your left eye and look at the finger.

Cover your right eye and look at the finger.

What do you see? The finger you see with your left eye is in a different position from the one you see with your right eye. This means you get two images(图像) when you look at something with both your eyes. To make a 3D movie, people have to get two images at the same time, so they use two video cameras. When playing a 3D movie, they use two projectors(放映机) at the same time. This brings two images together on the screen. Then, we use 3D glasses to separate(分离) the two images(1). One image enters one eye and the other image enters the other eye.

Then our brains put the two images together. This way, we get 3D pictures(2).

1.判断正误（“T”表示正确，“F”表示错误）You are a part of the story when you see 3D movies.

2.完成句子3D movies are exciting to watch, but you need to ____________________________.

3.简略回答问题 How do people get two images at the same time to make 3D movies?

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4.划线句子(1)提问_______________________________________________________________________

5.将文中划线句子(2)译成汉语。_______________________________________________________________________