【正文】 intervals = at intervals of 20 minutes 每隔 20 分鐘 at intervals （ 1）時時 （ 2）處處 3. circulate vi. 循環(huán) Blood circulates through [in] the body. 血液在人體內(nèi)循環(huán)。 circulation n. 循環(huán) 4. pump vt. amp。 digestion n. digestive adj. 6. mineral n. 礦物 mine n. 礦山 a coal mine 煤礦 a gold mine 金礦 mineral oil 礦物油 mineral water 礦泉水 a country rich in minerals 礦藏豐富的國家 7． swap vi. 交換 （常用于口語） for sth. 與某物 with sb. 與人 8. hearing n. 聽覺 His hearing is poor. = He is hard of hearing. 他的聽覺不好。 我們可以這樣提問： 1. How many parts of body can you see in this picture? 2. What are the parts of the body? 3. Can you describe the function of each part of the body? 例如： This is the brain, through which we can think and memorize something. It is inside our head and it can control the way we think, feel and move. Key words: 參看 學(xué)習(xí)詞匯。 聽下面五段短文，在橫線上填入所缺的單詞或詞組： 1. This an weighs about a kilo and is ________________ two sides . It is like a super puter that _____________ information . 2. This is about the size of a closed hands. Its job is to _______________the food we eat so that we have energy and can be ____________ and strong . 3. This an beats _______________ times a day . With each beat it moves 80 milliliters of blood – that’s 8,000 liters of blood per day ! It __________ blood into the lungs, where it receives _____________ , before being pumped around the rest of the body . 4. This is very delicate an . It’s moved by 6 muscles and ______________ various different layers . Light enters and reaches special light ____________ cells .This works like a camera and finally sends_____________ to the brain . 5. These ans ____________ oxygen and get rid of carbon dioxide. They are situated on either side of the heart . They receives air as a result of __________ and when blood passes through. They give it oxygen. 答案： 1. made up of， processes 2. break down， healthy 3. 100,000， pumps， oxygen 4. consists of, sensitive, signals 5. absorbs, breathing 附：聽力材料 1. This an weighs about a kilo and is made up of two sides . It is like a super puter that processes information . 2. This is about the size of a closed hands. Its job is to break down the food we eat so that we have energy and can be healthy and strong . 3. This an beats 100,000 times a day . With each beat it moves 80 milliliters of blood – that’s 8,000 liters of blood per day ! It pumps blood into the lungs , where it receives oxygen , before being pumped around the rest of the body . 4. This is very delicate an . It’s moved by 6 muscles and consists of various different layers . Light enters and reaches special light sensitive cells .This works like a camera and finally sends signals to the brain . 5. These ans absorbs oxygen and get rid of carbon dioxide . They are situated on either side of the heart . They receives air as a result of breathing and when blood passes through. They give it oxygen . . 四、小組合作學(xué)習(xí)。 我們可以這樣提問： 1. How can we live a healthy life? 2. How often do you clean your teeth? 3. How often do you do physical exercise? 4. How often do you eat sweets or chocolate? 5. How many pieces of fresh fruit do you eat per day? 6. How many hours do you sleep per night and have your brain rest? 7. What are the bad effects of smoking? 8. Is it wise for us to swim on a full stomach or eat too much? Why？ 我們可以 這樣回答。 五、寫作訓(xùn)練 。 1. 體育運動有利于人的身心健康，使我們的眼、腦、肌肉都得到鍛煉； 2.