Bicycle
Read the passage and answer this question: Why do people like to use bicycles?
A bicycle has two wheels. One wheel is behind the other. The bicycle also has a frame and a saddle. A person sits on the saddle and pedals the bicycle with his legs. People provide all the power for bicycles. People travel from place to place on bicycles very easily. Bicycles are cheap to use.

Trains, buses and cars are expensive. Bicycles do not use fuel. They do not pollute the air. They can also help us to keep fit, because riding a bicycle is good exercise.

Exercises
Ⅰ. Look and write down the names of the parts of a bicycle. 看图,写出自行车部件的名称。

1. 2. 3. 4.
Ⅱ. Read and tick or cross. 读一读,判断正 (√) 误 (×)。
( ) 1. People can travel by bicycles.

( ) 2. Bicycles are expensive.
( ) 3. There are two saddles on a bicycle.
( ) 4. Riding a bicycle is good for our health.

Ⅰ. 1. saddle 2. frame 3. pedal 4. wheel
Ⅱ. 1. √ 2. × 3. × 4. √

Ⅰ. 根据原文"A bicycle has two wheels... a frame and a saddle... pedals the bicycle with his legs"及插图定位部件。1处为座位，即saddle；2处为车架，即frame；3处为踏板，即pedal；4处为轮子，即wheel。
Ⅱ. 1. 原文"People travel from place to place on bicycles very easily"表明可骑行旅行，正确；2. 原文"Bicycles are cheap to use"与"expensive"矛盾，错误；3. 原文"a saddle"表明只有一个座位，错误；4. 原文"riding a bicycle is good exercise"即有益健康，正确。