题目内容
The injured boy to hospital by a policeman yesterday.
A．takes B．took C．is taken D．was taken
D
【解析】
试题分析：句意；昨天这个受伤的男孩被一个警察带到了医院里。结合语境可知本句描述的是过去发生的动作，故用一般过去时态，本句主语是动作对象，故用被动语态，选D。
考点：时态及语态
点评：英语中的时态主要是借助于时间状语与上下文语境来进行判断。解答此类题型，首先要注意句子中的时间状语，如果没有则要通过分析上下文，结合语境来判断句子的时态。语态的判断主要是确定句子主语与谓语动词的关系。如果是主动关系则用主动语态，反之如果是动宾关系，则用被动语态，尤其要注意一些特殊动词的用法。
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学练快车道口算心算速算天天练系列答案Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries slowly.
You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes
Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters from the screen. Remember to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect on (反射) the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.
Your hands and wrists (手腕)
Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time, follow these three rules: 1) Rest your wrists on something. 2) Keep your elbows at the same height as the keyboard. 3) Stop something and exercise your hands, wrists and fingers in a different way.
Your back
Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should all be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel (平行) to the floor. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and necks.
Enjoy your computer, but use it safely.
【小题1】A computer screen may injure your eyes if __________.
| A．you sit 60 centimeters away |
| B．you remember to look away |
| C．your eyes are too close to it |
| D．the window is on your left or your right |
| A．get plenty of exercise |
| B．move in the same way again and again |
| C．rest your wrists on something |
| D．keep your elbows as high as the keyboard |
| A．you work near a window |
| B．you often take a rest from working |
| C．you use a keyboard for a long time |
| D．the window is behind you |
| A．in the right way |
| B．for many hours |
| C．with the screen below your eyes |
| D．with your back leaning forward |
| A．How to protect your eyes. |
| B．How to protect your hands and wrists. |
| C．How to use a computer safely. |
| D．How to protect your back. |
Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries slowly.
You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes
Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters from the screen. Remember to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect on (反射) the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.
Your hands and wrists (手腕)
Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time, follow these three rules: 1) Rest your wrists on something. 2) Keep your elbows at the same height as the keyboard. 3) Stop something and exercise your hands, wrists and fingers in a different way.
Your back
Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should all be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel (平行) to the floor. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and necks.
Enjoy your computer, but use it safely.
1.A computer screen may injure your eyes if __________.
|
A．you sit 60 centimeters away |
|
B．you remember to look away |
|
C．your eyes are too close to it |
|
D．the window is on your left or your right |
2.Hand and wrist injuries are caused when you _________.
|
A．get plenty of exercise |
|
B．move in the same way again and again |
|
C．rest your wrists on something |
|
D．keep your elbows as high as the keyboard |
3.Your eyes and hands will be safe if __________.
|
A．you work near a window |
|
B．you often take a rest from working |
|
C．you use a keyboard for a long time |
|
D．the window is behind you |
4.It is good for your back and neck if you sit __________.
|
A．in the right way |
|
B．for many hours |
|
C．with the screen below your eyes |
|
D．with your back leaning forward |
5.What would be the best title for the passage?
|
A．How to protect your eyes. |
|
B．How to protect your hands and wrists. |
|
C．How to use a computer safely. |
|
D．How to protect your back. |