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¡¡¡¡You need to exercise, I need to exercise, and we all need to exercise. Doctors say it is good for us, it's good for our healthy. It makes your heart and body strong. If you do enough exercise you will feel better about yourself. The doctors also say it's best to exercise twice each week. Twenty minutes each time enough.
¡¡¡¡There are many different ways to exercise. Some people like walking, some people like running, some people like playing sports and some people like swimming. Different people like different ways to exercise. Many people go to special places to exercise. They are called
¡°fitness centers.¡±¡¡¡¡Exercise can be fun. Friends can exercise together at a fitness center. Or, they can play sports together. How do you exercise?
(1) What's the main idea?
[¡¡¡¡]
A
£®Exercise equipment£¨É豸£©is expensiveB
£®Playing sports is a good way to exercise.C
£®Every person should exercise.(2) According to the passage, we should exercise ________.
[¡¡¡¡]
|
A £®every day |
B £®20 minutes a week |
C £®twice a week |
(3) At fitness centers, ________.
[¡¡¡¡]
A
£®you can buy equipmentB
£®people can do many kinds of exercisingC
£®exercising is not fun(4) Which of these kinds of exercising is not in the passage?
[¡¡¡¡]
|
A £®Sports |
B £®Swimming |
C £®Dancing |
(5) Which of these sentences about exercising is true?
[¡¡¡¡]
A
£®Exercising us is expensive.B
£®Exercise is good for your health.C
£®Only doctors exercise.ÍêÐÎÌî¿Õ
¡¡¡¡¡¡Plants are very important ¡¡1¡¡¡¡¡¡ things. Life could not go ¡¡2¡¡¡¡ ¡¡if there were no plants. This is because plants can make food from air, water and sunlight. But animals and man cannot ¡¡3¡¡¡¡ ¡¡so. Animals get their food by eating plants and ¡¡4¡¡¡¡ ¡¡animals. Man gets its food by eating plants and animals too. ¡¡5¡¡¡¡ ¡¡animals and man ¡¡6¡¡¡¡ ¡¡plants in order to ¡¡7¡¡¡¡ ¡¡. This is why we find that there are so many plants around us.
¡¡¡¡¡¡If you look ¡¡8¡¡¡¡ ¡¡at the plants around you, you will find that there are many types of plants. Some plants are large, ¡¡9¡¡¡¡ ¡¡others are small. ¡¡10¡¡¡¡ ¡¡plants are green. There are two sorts£¨ÖÖÀࣩof plants: flowering plants and non-flowering£¨²»¿ª»¨µÄ£©plants.
¡¡¡¡¡¡Flowering plants have roots£¨¸ù£©,stems£¨¾¥£©,leaves, flowers and fruits£¨¹û×Ó£©. ¡¡11¡¡¡¡ ¡¡all the trees around us are flowering plants. Flowering plants ¡¡12¡¡¡¡ ¡¡make seeds£¨ÖÖ×Ó£©. The sends ¡¡13¡¡by the fruits. Some fruits have one seed, some have two, three or four, and some have many seeds. But a few fruits have no seeds ¡¡14¡¡¡¡ ¡¡. ¡¡15¡¡¡¡ ¡¡example of a fruit ¡¡16¡¡¡¡ ¡¡seeds is banana fruit.
¡¡¡¡¡¡Most non-flowering plants do not grow from seeds. They grow from spores£¨æß×Ó£©. Spores are small. Some spores are ¡¡17¡¡¡¡ ¡¡small and ¡¡18¡¡¡¡ ¡¡that they can float£¨Æ¯¸¡£©¡¡19 ¡¡¡¡ ¡¡the air. We may say that spores are quite different from seeds. When these spores ¡¡20¡¡¡¡ ¡¡on wet and shady£¨ÒõÁ¹µÄ£©places, they usually grow into plants.
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