[题目]-What four and five? - nine. A. are; They are B. is; It’s C. is; Its D. are; It’s 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】—What _________ four and five?

—_________ nine.

A. are; They are B. is; It’s C. is; Its D. are; It’s

【答案】B

【解析】句意：——四加五是多少？——是九。故选B。

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Body signals

Pilots from different countries understand body signals if they have the correct training. When you wave your arms up and down in a straight line, it means “yes”. When you point downwards and swing your arm from side to side, it means “no”. If you want the pilot to know that it's safe to land, push your hands in front of you and bend your knees. If you want to say it's not safe to land, put your arms in the air and move them to one side.

Smoke signals

The smoke from a fire can be seen from far away, so it's a good way to draw attention. If the weather is dry, it isn't hard to start a fire. Remember, however, the fires can be very dangerous if they get out of control. Never light a fire unless you are sure that it can't spread. If the ground is dark, light smoke can be seen more easily. Green grass and leaves produce light smoke.

Ground-to-air signals

It's a good idea to build some signals, too. Use large pieces of wood to make the symbols. If you can't find any wood, use earth. Some useful symbols are：

F“I need food and water.”

II“I need medicine.”

I“I am badly hurt.”

X“I am unable to move from here.”

Pilots' replies

If the pilot lowers the plane's wings from side to side, this means “message received and understood”. (At night, the pilot flashes the plane's green lights.) If the pilot flies the plane in a clockwise (顺时针方向的) circle, this means “message received but not understood”. (At night, the pilot flashes the plane's red lights.)

However, there is no signal which means “message not received”.

【1】Which picture means “it's safe to land”?

A.B.

C.D.

【2】What can you use to build Ground－to－air signals on a lonely island?

A.Wood or earth.B.Grass and leaves.

C.Wood and leaves.D.Sand or grass.

【3】What can we know from the passage?

A.Swinging your arm from side to side means “yes”．

B.Light smoke can be seen easily if the ground is dark.

C.You can make a symbol “I” if you need some medicine.

D.The pilots send out a yellow lights at night.

【4】What is the passage mainly about?

A.The explanation of body signals on an island.

B.The importance of making signals on an island.

C.Ways of living on a lonely island.

D.Ways of sending out signals on a lonely island.

【题目】Our school will play No.4 Middle school .I think we’ll win. Please cheer us

A. with, on B. against, on

C. against ,up D. on, against

【题目】当你在野外发生意外，急需援救时，你应该打出什么信号？

A．SOS B. UFO C.WTO

【题目】

Germs are very small living things. They are so small that we cannot see them unless we use a microscope. They are found in all kinds of places, all over the world. There are four main types of germs that they can invade (侵入) plants, animals and people, and sometimes they can make us sick.

Bacteria (细菌) live just about everywhere on earth. Not all bacteria are bad. Some of them are good for our bodies. They help us keep things in balance. Good bacteria live in our bodies and help us use the nutrients in the food we eat and make waste from what's left over. We couldn't make the most of a healthy meal without these important helper germs! On the other hand, there are several types of bad bacteria, including those that cause sore throats.

Viruses (病毒) need a host to keep living. They need to be inside a place of a living plant or animal, including humans, or even inside a bacterium! Whatever a virus lives in is called its host. Once a virus finds the perfect host, the goal is to reproduce and spread. Viruses are pretty tricky because they can change quickly to fit a new environment. When viruses get inside people's bodies, they can spread and make people sick.

Fungi (真菌) are kind of like plants. Unlike other plants, fungi cannot make their own food from soil, water, and air. Fungi love warm and wet places. Most fungi are harmless. The kind that can grow on your skin can be treated. It probably won't hurt you. But it really makes you uncomfortable!

Protozoa (原生动物) are extremely small. Most of them live in water. Some protozoa actually eat bacteria and they are good because they also eat the waste of other small living things. Some protozoa are bad, and they live off of other living things, sometimes humans. For example, if a person drinks unclean water, protozoa may cause health problems.

【1】Are germs small?

____________________

【2】How many germs are mentioned in the passage?

____________________

【3】Why can viruses change quickly?

____________________

【4】Where do fungi love to stay?

____________________

【5】What does the passage mainly talk about?

____________________

【题目】—Is this your jacket?

—_________. It’s Jenny’s jacket.