— We really shouldn’t use plastic bags any more when shopping.

                —       It’s important to protect our environment.

                A. So does it.               B. With pleasure.       C. That’s OK.                    D. So it is.

 

根据句意及汉语提示，写出各单词的正确形式。

1.We’ll have to ______（训练）before the next match.

2.Our teachers often ______ (鼓励)students to ask questions in class.

3.The girl ______ (尖叫) when she saw the snake.

4.The old man is very sick. He takes a lot of ______ (药) every day.

5.______ (令人伤心地), many people still don’t want to take any actions to protect the animals.

6.It is really ______ (幸运的) for me to pass the driving exam .

7. Millie didn’t clean the room last week, she visited her friends ______ (代替).

 

Many companies use guards and expensive alarm systems to protect their property (财产). Soon a new kind of protection will be used—robots. Engineers have been working on the first mobile robots for businesses. The robots will guard factories, warehouses (仓库) and museums at night.
The mobile robots will move around slowly on wheels. They will be able to detect (察觉,发现) people through walls and pick up sounds, such as breaking glass. They can be fixed with loud sirens to frighten thieves, or radios to signal police or guards.
To protect a building, a robot will have to move around without knocking into the walls. Information about the building will have to be stored in the robot’s small, built-in computer. A floor map could be programmed into the computer’s memory, for example.
A mobile robot will not be able to do everything. Unlike human guards, it will not be able to climb stairs, open doors, or move along rough ground. It won’t be able to tell the difference between friends and enemies. Because of that, people will have to be prevented from entering the area it moves.
One kind of mobile robot will be able to “sense” whether a chair or a box has been moved and go around it. This robot will also judge size well enough so that it won’t send an alarm if a cat crosses the room. And if someone tries to steal this robot, it will sound a loud, painful siren. The three-foot-tall robot is hard to be stolen anyway. It weighs about 200 pounds.
U.S. companies pay almost $10 billion a year to protect their property with alarm systems and human guards. Mobile robots may be cheaper.  (296)
【小题1】 Why is the new kind of robots called mobile robots? Because they can _____.

A．guard factories, warehouses and museums

B．send loud, painful sirens when it is stolen

C．sense moving objects and signal police

D．move around and do the programmed work

【小题2】 How will a robot get directions for moving around a building?

A．From a human guard.	B．From a built-in computer.
C．From another robot.	D．From radio signals.

【小题3】 What can be the best title of this passage?

A．New Guards.	B．Science and Technology.
C．Alarm Systems.	D．Engineers and Robots.

Most animals protect(保护) their young until they are old enough to take care of themselves. A fish that swims in the rivers of South America protects its young in a very strange way. This fish, a kind of catfish, uses its mouth to keep its babies from danger(危险).

    When this catfish lays(产卵) its eggs, it carries them in its mouth. From what we know, it does not eat during this time. After the eggs hatch(孵化), the fish swims with its young to protect them. It opens its mouth when danger appears(出现), and the tiny fish swim inside. They swim out only when it’s safe again.

    These catfish may have a peculiar way to protect their young, but it seems(好像) to work.

1.The best title(标题) is _____________.

        A. Staying Away From Danger     B. How A Fish Protect Its Young

        C. Laying Eggs                  D. A Cat That Swims

2. The catfish in the story live in _________________.

        A. lakes            B. the sea          C. rivers           D. North America

3.The young fish are ____________________.

        A. tiny         B. large            C. yellow and gold  D. very brave

4.If the young fish were not near their parents, they would be ______________.

        A. safer            B. in greater danger    C. happier      D. less hungry

5. The word “peculiar” in the story means ________________.

        A. easy         B. useless      C. strange      D. dangerous

 

①Forests help to keep water from running away, so drought does not often happen. The trees in the forests can keep raindrops from hitting the soil directly, and the dead leaves on the ground can also keep the water from running away.②

Chinese people don’t want to see more floods and droughts. We have built the “ Great Green Wall” of trees across the northern part of our country.③ Thanks to the “ Great Green Wall”, we can prevent the wind from blowing the earth away. It will stop the sand from moving towards the rich farmland. That’s why more “ Great Green Walls” are needed. Trees must be planted all over the world.④

根据短文内容，从题中所给的A、B、C、D四个选项中，选择最佳答案。（10分）

1. “Great Green Wall will make the world better.” This sentence should be put in      .

A．①

B．②

C．③

D．④

2.       can help to keep water from running away.

A．Rain

B．Forests

C．Sand

D．Land

3. The reason of building “ Great Green Wall”is        .

A．to make the city beautiful

B．to move the sand

C．to stop the sand from moving towards the rich farmland.

D．to stop the rain from hitting the soil directly.

4. We have built the “ Great Green Wall” of trees        of China.

A．in the east

B．in the west

C．in the south

D．in the north.

5.From the passage, we can know which is wrong.

A．We must plant more trees.

B．We have to protect our environment.

C．“Great Green Wall” project is very beneficial to us.

D．It is not necessary that trees must be planted all over the world.