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Unit 2
SECTION A
Iron and the
Effects of Exercise
朱卫华 制作
Iron Challenge
Question 1 / 10
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.
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 1
Iron Challenge
Question 2 / 10
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- c. men,19-50
18 years old
years old
d. women,1950 years old
2. The answer is D.
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).
to question 2
Iron Challenge
Question 3 / 10
You may be iron deficient if you are a woman and _____.
(reference)
a. have a long menstrual period
b. donate blood often
c. don't eat meat, fish or poultry
d. 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.
to question 3
Iron Challenge
Question 4 / 10
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 nonheme, which is not as well absorbed. Choose one food that
contains heme iron. (reference)
a. bran flakes
b. beef
hamburger
c. eggs
d. red kidney
beans
Iron Challenge
Question 5 / 10
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
5. The answer is B.
Redder or darker meats tend to have more
heme iron. For example, chicken legs (dark
meat) has more heme iron than chicken
breast (light meat).
to question 5
Iron Challenge
Question 6 / 10
You may be iron deficient if you ______. (reference)
a. often feel tired
b. look pale
c. have difficulty concentrating
d. all of the above
6. The answer is D (all of the above).
Symptoms of iron deficiency may include:
looking pale, feeling tired, having trouble
concentrating, feeling out of breath, not having
enough energy, and feeling irritable.
to question 6
Iron Challenge
Question 7 / 10
The amount of non-heme iron you absorb is affected by other
foods. Choose one food that increases the absorption of nonheme iron. (reference)
a. oranges
b. whole grain
breads
c. yoghurt
d. tea
7. The answer is A (oranges).
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 nonheme iron.
Substances in tea and coffee can lower the
amount of non-heme iron your body can use.
to question 7
Iron Challenge
Question 8 / 10
People who do not eat meat, fish or poultry need to _____.
(reference)
a)
b)
c)
d)
eat foods enriched or fortified with iron
have vitamin C-rich foods with their meals
avoid tea and coffee during their meals
do all of the above
8. The answer is D (all of the above).
Meat, fish or poultry and vitamin C-rich foods
increase the absorption of non-heme iron in the
diet. People who mostly have non-heme iron
each day, need to consume more iron to meet
their bodies’ need.
to question 8
Iron Challenge
Question 9 / 10
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
9. The answer is B.
You need to have two cups of spinach to equal
the amount of iron absorbed from a 90 gram
serving of beef sirloin.
to question 9
Iron Challenge
Question 10 / 10
A good way to maintain a healthy level of iron in the body
is to _______. (reference)
All
of these
a. eat iron-fortified breakfast cereals often
b. enjoy a variety of meat dishes on a regular basis
c. include vitamin C-rich vegetables in your meals
d. do all of these
10. The answer is D (all of the above).
to question 10
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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II.Text Analysis: Main Idea and Devices for Developing It
Back
Main 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?
问题解决法
引言法
III. Expressions & Patterns
A. Expressions:
1.
2.
3.
4.
5.
6.
7.
to lead to
to bounce back
in general
one in / out of four
up to
to take in
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
Back
14. to be associated with
15. to be out of breath
16. to go to zero
17. to be most likely to do sth.
18. to undo the problem
19. to add more iron-rich
foods to the diet
20. to produce a feeling of
wanting to throw up
21. to derive iron from
22. to be a lot more careful
about
23. to sum up
24. to remedy the deficiency
III. Expressions & Patterns
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吸收，理解
 to take in (L. 17)
活学活用
她聚精会神地听讲,听懂了他说的每个字并不
时地问问题。
She listened attentively,
taking in every word he
said and asking
questions from time to
time.
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为了······
 in an effort to (do sth.) (L. 23)
活学活用
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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可能；有······倾向
 to be liable to (L. 24)
活学活用
不仔细调查研究，你就会得出错误结论。
Without careful
investigation, you’re
liable to come to
wrong conclusions.
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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
活学活用
高温天气使江
A month’s continuous
西省的旱情更
high-temperature
加严重。
climate tipped the
drought in Jiangxi
Province over the edge
into more seriousness.
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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/
amazement (L. 30)
活学活用
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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III. Expressions & Patterns
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耗尽，用完
 to go to zero (L. 42)
活学活用
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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解决问题
 to undo the problem (L. 53)
活学活用
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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使人想呕吐
 to produce a feeling of wanting to throw up
(L. 55)
活学活用
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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从铁锅中吸收铁离子
 to derive iron from the pan (L. 63)
活学活用
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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特别注意选择饮食
 to be a lot more careful／particular about
their food choices (L. 68)
活学活用
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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24.弥补不足/错误/补救损失
 to remedy the deficiency / a fault/ a loss (L. 69)
活学活用
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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III. Expressions & Patterns
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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
对于那些已经缺铁的女性，任何因锻炼而
edge
into
a
more
serious
deficiency.
(L.
27)
产生的更多铁离子流失都足以导致体内缺
铁状况的恶化。
句型提炼
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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III. Expressions & Patterns
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。
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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。
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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
虽然积极锻炼的育龄妇女最有可能铁离子储量低，
have
a high level of physical activity. (L. 47)
但男性也并非不缺铁，尤其是在他们不吃肉类而又
从事高强度的体力活动的情况下。
句型提炼
2) While sb. / sth. is most / least likely to…, sb. /
sth. (else) is (not)…, especially if / when…虽然
某人/某事最有／不可能 ······, 但(另一) 某人／
事也（并非）······, 尤其是······
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III. Expressions & Patterns
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。
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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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