unit 2 section a iron and the effects of exercise 朱卫华制作

Unit 2

SECTION AIron and the

Effects of Exercise

朱卫华制作

Everyone needs iron to grow and stay healthy. It is found in many parts of the body. Choose one thing iron does in your body: (reference)

a. It helps your fingernails stay smooth.b. It helps to carry oxygen from lungs to cells.c. It helps your hair stay healthy.d. It helps to strengthen your muscles.

Iron ChallengeQuestion 1 / 10

1. The answer is B. Iron carries oxygen from your lungs to all parts of your body. Iron also builds red blood cells. Without enough iron, you may feel tired and have trouble concentrating.

to question 1to question 1

Everyone requires a different amount of dietary iron to stay healthy. Which of the groups below needs the most iron each day? (reference)


a. infants,7-12 months old

b. teen girls,14- 18 years old

c. men,19-50

years old

d. women,19- 50 years old


Women 19 － 50 years old need more iron than any other age group.

Women need the most iron because they lose varying amounts during the menstruation ( 月经期 ).

2. The answer is D.

You may be iron deficient if you are a woman and _____. (reference)

a. have a long menstrual periodb. donate blood oftenc. don't eat meat, fish or poultryd. all of the above



3. The answer is D (all of the above).

Blood loss of any kind and not eating meat, fish or poultry may lead to iron deficiency.

There are two types of iron. One is heme(亚铁血红素 ), which is easily absorbed by the body; and the other is non-heme, which is not as well absorbed. Choose one food thatcontains heme iron. (reference)


a. bran flakes b. beef hamburger

c. eggs d. red kidney beans

Meat, fish and poultry contain different amounts of heme iron. Choose the food with the most heme iron. (reference)


a. salmon steak

b. beef tenderloin

c. chicken breast

d. pork tenderloin


Redder or darker meats tend to have more heme iron. For example, chicken legs (dark meat) has more heme iron than chickenbreast (light meat).

5. The answer is B.

You may be iron deficient if you ______. (reference)


a. often feel tiredb. look palec. have difficulty concentratingd. all of the above

Symptoms of iron deficiency may include: looking pale, feeling tired, having trouble concentrating, feeling out of breath, not havingenough energy, and feeling irritable.



The amount of non-heme iron you absorb is affected by other foods. Choose one food that increases the absorption of non-heme iron. (reference)


a. oranges b. whole grain breads

c. yoghurt d. tea

Oranges are a good source of vitamin C, which can increase the amount of non-heme iron absorbed by up to four times. Meat, fish and poultry can also increase the absorption of non-heme iron.Substances in tea and coffee can lower theamount of non-heme iron your body can use.


7. The answer is A (oranges).

People who do not eat meat, fish or poultry need to _____.(reference)


a) eat foods enriched or fortified with ironb) have vitamin C-rich foods with their mealsc) avoid tea and coffee during their mealsd) do all of the above


Meat, fish or poultry and vitamin C-rich foodsincrease the absorption of non-heme iron in thediet. People who mostly have non-heme iron each day, need to consume more iron to meettheir bodies’ need.


How much boiled spinach would you need to eat to equal the iron available in a serving of sirloin steak?(reference)


a. 1 cup/ 250 mL b. 2 cups/ 500 mL c. 3 cups/ 750 mL


You need to have two cups of spinach to equalthe amount of iron absorbed from a 90 gramserving of beef sirloin.

9. The answer is B.


A good way to maintain a healthy level of iron in the body is to _______. (reference)

a. eat iron-fortified breakfast cereals oftenb. enjoy a variety of meat dishes on a regular basis

c. include vitamin C-rich vegetables in your mealsd. do all of these

All

of these

I. Pre-reading Activities: Listen, Look & Say

Digestive system: The digestive system is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. Inside this tube is a lining called the mucosa. In the mouth, stomach, and small intestine, the mucosa contains tiny glands that produce juices to help digest food.

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IIII..Text Analysis: Main Idea and Devices for Text Analysis: Main Idea and Devices for Developing ItDeveloping ItMain idea of the text ?

Exercise may lead to more loss of iron in females, which in turn produces serious effects on their health. According to sports medicine experts, active women should pay more attention to iron deficiency in their bodies and take correct measures to remedy it before it really becomes a problem.

Devices for developing it?

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问题解决法问题解决法引言法引言法

III. III. Expressions & Patterns

A. Expressions: BackBack

1. to lead to 2. to bounce back3. in general4. one in / out of four5. up to 6. to take in7.

to be at greatest/more risk of

8. plus 9. in an effort to do sth.10. to be liable to do sth.11. to tip her over the edge into 12. to result in 13. to be lost in sweat

14. to be associated with 15. to be out of breath16. to go to zero17. to be most likely to do sth.18. to undo the problem 19. to add more iron-rich foods t

o the diet20. to produce a feeling of wanti

ng to throw up21. to derive iron from22. to be a lot more careful abou

t23. to sum up24. to remedy the deficiency

她聚精会神地听讲 ,听懂了他说的每个字并不时地问问题。

活学活用活学活用


She listened attentively, taking in every word he said and asking questions from time to time.

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吸收，理解 to take in (L. 17)

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他们为了消除蝗灾正设法把十万只母鸡运往家乡。



They were trying to transport one hundred thousand hens to their hometown in an effort to wipe out the plague of locusts.

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为了······ in an effort to (do sth.) (L. 23)

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不仔细调查研究，你就会得出错误结论。活学活用活学活用


Without careful investigation, you’re liable to come to wrong conclusions.

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可能；有······倾向 to be liable to (L. 24)

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A month’s continuous high-temperature climate tipped the drought in Jiangxi Province over the edge into more seriousness.

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导致体内缺铁状况的恶化 to tip her over the edge into a more

serious deficiency (L. 28)

一个月的持续高温天气使江西省的旱情更加严重。

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我们大家都被眼前的美景所吸引。



We were all lost in admiration of the beauty before our eyes.

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随汗液流失 /埋头工作／沉思／不胜惊奇 to be lost in sweat / one’s work / thought/ am

azement (L. 30)

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面对我们的强大攻势，敌人的士气丧失殆尽。

In the face of our strong offensive, the spirit of the enemy went to zero.

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耗尽，用完 to go to zero (L. 42)

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解决水土流失问题的最好办法是退耕还林。

The best way to undo the problem of soil erosion is to reforest the cultivated land.

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解决问题 to undo the problem (L. 53)

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这里的美景使人想放声歌唱。

The beautiful view here produces a feeling of wanting to sing heartily.

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使人想呕吐 to produce a feeling of wanting to throw up (L. 55)

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派克的世界性声望源于他精湛的演技。Peck’s worldwide popularity derived from his excellent acting.

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从铁锅中吸收铁离子 to derive iron from the pan (L. 63)

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对于过分挑剔食物的人，完全有必要服用铁离子补剂。For those who are too particular about their food, there is every need to take iron supplements.

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特别注意选择饮食 to be a lot more careful／ particular about

their food choices (L. 68)

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各级政府做了大量的工作来弥补 SARS造成的损失。A great deal has been done by governments at all levels to remedy the loss caused by SARS.

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24. 弥补不足 /错误 /补救损失 to remedy the deficiency / a fault/ a loss (L. 69)

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原句 :For a woman who already has a poor iron status, any additional iron loss from exercise may be enough to tip her over the edge into a more serious deficiency. (L. 27)

III. Expressions & PatternsIII. Expressions & Patterns

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句型提炼

对于那些已经缺铁的女性，任何因锻炼而产生的更多铁离子流失都足以导致体内缺铁状况的恶化。

3) For sb. / sth. who / that …, as they have observed / found, any … may be enough to …正如他们所观察发现的那样，对于 ······的某人／某物来说，任何的 ······足以 ······

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应用： a.正如他们所观察发现的那样，对于一个身体已经非常虚弱的病人来说，任何额外的精神打击都足以使他彻底崩溃。

For a patient who already has a poor health, as they have observed, any additional mental attack may be enough to break him down.


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应用： b. 正如他们所发现的那样，对于一个已经很脆弱的生态系统，任何盲目破坏都足以对它造成难以恢复的损失。

For the ecological system which is already fragile, as they have found, any mindless destruction may be enough to do an irrecoverable damage to it.


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原句 :While active, child-bearing age women are most likely to have low iron stores, men are not safe, especially if they don’t eat meat and have a high level of physical activity. (L. 47)

III. Expressions & Patterns

句型提炼

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2) While sb. / sth. is most / least likely to…, sb. / sth. (else) is (not)…, especially if / when… 虽然虽然某人 /某事最有／不可能 ······, 但 ( 另一 ) 某人／事也（并非） ······, 尤其是 ······

虽然积极锻炼的育龄妇女最有可能虽然积极锻炼的育龄妇女最有可能铁离子储量低，铁离子储量低，但男性也并非但男性也并非不缺铁，不缺铁，尤其是尤其是在他们不吃肉类而又在他们不吃肉类而又从事高强度的体力活动的情况下。从事高强度的体力活动的情况下。

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应用： a. 虽然稀有动物最有可能灭绝，但其他动物也并非安全，尤其当它们遭到人类大量捕杀时。

While rare animals are most likely to become extinct, other animals are not safe, especially when they are caught and killed in large numbers by man.


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应用： b. 虽然大学毕业生最不可能面临失业的问题，但他们并不总是保险的，尤其是在他们未能更新知识或工作与专业不对口的情况下。

While the college graduates are least likely to face the problem of unemployment, they are not always safe, especially if they fail to renew their knowledge or their jobs have nothing to do with their specialties.


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unit 2 section a iron and the effects of exercise 朱卫华 制作

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unit 2 section a iron and the effects of exercise 朱卫华制作