logo - 刷刷题
下载APP
【简答题】

阅读理解。
No matter what your reasons for eating more vegetarian food are, there is no denying the
obvious health benefits that result from the elimination (排除) of red meat from your diet. In
general, vegetarians have lower levels of blood fats,cholesterol(胆固醇) andtriglyceride
(甘油三酸脂) than meat eaters of a similar age and social status.
High levels of blood fats are associated with an increased risk of heart disease. Lacto-ovo
vegetarians (乳类蛋类素食者), who eat eggs and dairy products, have higher cholesterol levels
than vegans(绝对素食者). Even among lacto-ovo vegetarians, however, cholesterol levels
are generally lower than they are among meat eaters.
Researchers have found that older men that eat meat six or more times a week are twice as
likely to die of heart disease as those that don't have meat. Among middle-aged men, meat eaters
were four times more likely to suffer a fatal heart attack, according to the study.
As for women, who are partly protected by their hormones and generally develop heart disease
later in life than men, the risk of fatal heart disease has been found to be lower only among older
vegetarians. In a 1982 study of more than 10 000 vegetarians and meat eaters, British researchers
found that the more meat people consumed, the greater risk they had of suffering a heart attack.
Though eliminating meat from the diet is likely to reduce your consumption of heart-damaging
fats and cholesterol, continuing to eat large amounts of high-fat dairy products and cholesterol-rich
eggs can reduce the benefit. The introduction of more vegetables, fruit and raw foods will definitely
enhance the benefits of giving up eating meat.
1. According to the passage, vegetarians are healthier than meat eaters in all of the following aspects
EXCEPT their_________.

A. heart rate
B. cholesterol levels
C. triglyceride levels
D. blood fat levels


2. We can learn from the underlined sentence in the first paragraph that__________.
A. you need to have a good reason for having vegetarian food
B. eliminating red meat from your diet is no good for your health
C. eating more vegetarian food can have obvious benefits for your health
D. the possibility of meat eaters developing heart disease is twice as high as that for vegetarians
3. From the second paragraph, we can know that
A. lacto-ovo vegetarians have the healthiest diets
B. vegetarians don't eat eggs and dairy products
C . vegans have the lowest cholesterol levels
D. vegans do not have the risk of catching heart disease
4. What can we learn from the passage?

A. Women tend to suffer from heart disease earlier men.
B. Older women have less chance of suffering from heart disease than young women.
C. Eating more meat may increase a person's chance of developing heart disease.
D. Eating meat has little influence on older people's health.

举报
题目标签:三酸素食胆固醇
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】合成胆固醇的限速酶是

A.
HMGCoA合酶
B.
鲨烯环氧酶
C.
甲羟戊酸激酶
D.
HMGCoA还原酶
E.
HMGCoA裂解酶

【单选题】胆固醇的生理功能 不包括

A.
转变为维生素 D3
B.
参与构成生物膜
C.
转化为类固醇激
D.
转化为胆汁酸
E.
氧化供能

【单选题】含胆固醇较多的食物是( )。

A.
深海鱼
B.
玉米油
C.
花生
D.
豆油
E.
动物脑

【单选题】胆固醇不能转变成()。

A.
胆色素
B.
醛固酮
C.
雄激素
D.
雌激素
E.
维生素C

【单选题】胆固醇合成的限速酶是

A.
鲨烯环化酶
B.
鲨烯合酶
C.
HMGCoA还原酶
D.
HMGCoA合成酶
E.
HMGCoA裂解酶

【单选题】肉毒梭菌毒素食物中毒的好发食品是

A.
海产品
B.
鸡蛋
C.
冰淇淋
D.
臭豆腐
E.
卤猪肠

【多选题】下列甘油三酸酯可以命名为( ) CH2OOC(CH2)16CH3 | CH3(CH2)4 CH=CHCH2CH=CH (CH2)7 COOCH | CH2OOC(CH2)12CH3

A.
Sn-甘油-1-硬脂酸酯-2-亚油酸酯-3-肉豆蔻酸酯
B.
1-硬脂酰-2-亚油酰-3-肉豆蔻酰-Sn-甘油
C.
Sn-MLSt
D.
Sn-16:0-18:2– 12:0