单元自测试卷青岛出版社九年级英语人教版
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七、阅读表达（共5小题，计10分）
阅读下面的短文，按要求完成后面各题。
Motorbike is a very convenient vehicle. However there's an important thing that you need to consider — safety. A motorbike helmet（头盔）is necessary for everyone, no matter where you are or how short the ride is. It's law.
Most motorbike accidents cause head injuries. Each year about half a million people are injured in motorbike accidents, and most of those injuries would not have happened if a helmet had been worn. So you should be used to wearing a helmet while you're riding.
Besides a helmet, you must know some traffic safety tips（提示）.
Stop at all stop signs and obey traffic lights just as cars do. Be especially careful at a crossroads.
Always ride in the same direction as cars — never ride against traffic.
Don't ride too close to parked cars — doors can open suddenly.
Never share the seat with people — only one person should be on a motorbike.
Never wear headphones while riding. If you wear them, you can't hear other things clearly on the road.
1. What is necessary when we ride a motorbike?（不多于3个单词。）
2. What do most motorbike accidents cause?（不多于两个单词。）
3. Why shouldn't we wear headphones while riding?（不多于10个单词。）
4. 将短文中画线句子译成汉语。
5. 请给短文拟一个适当的英文标题。
答案：1. A helmet.
解析：文中明确提到“A motorbike helmet is necessary for everyone”。
2. Head injuries.
解析：“Most motorbike accidents cause head injuries.”直接给出答案。
3. Because we can't hear clearly on the road.
解析：文中提到“If you wear them, you can't hear other things clearly on the road.”，简化后符合要求。
4. 不要离停着的汽车太近骑行 —— 车门可能会突然打开。
5. Motorbike Safety Tips
解析：短文主要讲骑摩托车的安全注意事项，此标题能概括主旨。
八、写作（15分）
根据下表内容，写一篇介绍历史上重大发明的英语短文。内容包括表格内所有信息，可适当发挥。词数为80左右，文章开头已给出，不计入总词数。
| Inventions | Time | Inventors | Usage（用途） |
| --- | --- | --- | --- |
| digital camera | 1975 | Steven J. Sasson | take photos |
| telephone | 1876 | Alexander Bell | communicate |
| radio | 1895 | Guglielmo Marconi | listen to news and music |
There are many inventions that have caused great changes in the world. Here's a short introduction.
答案：There are many inventions that have caused great changes in the world. Here's a short introduction. The digital camera was invented by Steven J. Sasson in 1975, which is used to take photos. The telephone, invented by Alexander Bell in 1876, helps people communicate with each other easily. The radio was created by Guglielmo Marconi in 1895, and it allows people to listen to news and music. These inventions have greatly influenced our daily life.
解析：根据表格信息，依次介绍每个发明的时间、发明者和用途，用一般过去时的被动语态，适当使用连接词，控制词数在80左右。
