</p> D 38,000,000.3 `7 j, i% o4 S* S
2. A pill of multivitamins may contain all of the following substances EXCEPT& ^4 H+ ~+ u8 e
A all vitamins in the B group.8 s& C' L5 [2 \1 A
B vitamins C and E., Y) l4 `8 f- a
C much iron and folate.8 [3 c0 p5 i9 `0 O/ \
D antiviral substances.. f5 Y7 S. j+ Z$ A0 X3 }
3. Which of the following is NOT one of the effects of multivitamins mentioned in the passage?* L& |, ~7 A' I% n: t! R
A To reduce the rate of babies born too early.
& E2 e( `' _) O# j, ~ B To reduce the risk of low birth weight.7 c/ v. m, ~" ?! \5 B: Q1 h
C To reduce fetal deaths in pregnant women infected with HIV.% k2 w/ u7 q8 F2 b9 \. b5 X
D To increase the number of lymphocytes in mothers’ blood.
, e8 n7 W- A: d# Y4 B 4. What a role do lymphocytes play in the human body?
' H ]" [/ P2 i A To reduce the rate of dying while still a fetus.- f- o, t( s) N; D: @
B To raise the body’s immunity against infection.8 ]( y6 z: ~& d7 E8 T
C To help prevent the development of heart disease., D. f/ K# i8 P: i, R5 N" K" m3 O
D To help prevent the development of diabetes.
7 S. `) w4 |/ K: U; J1 d) O- K% y 5. How many percent of babies were born with low birth weight to women who were not infected with the AIDS virus and took the multivitamins according to a new study?. V4 N& K6 n9 @+ ?$ Q$ X& T% v
A Less than8%.
( N' J: i* r! E, I) { B About 9.5%.# R6 K; I; u1 w/ y
C 1.5%.
& A5 Y: M! H5 D0 G1 w, B D 17.5%.
6 {6 @$ r6 L- _: b, a 答案与题解:
* @7 j. V5 Y1 Q& E; G7 H% V 1.C 第一段最后两句说到,WHO估计每年有2000万出生婴儿体重过低,其中十个中有九个生于发展中国家,可见发达国家只占十分之一,故应是200万。! g$ v6 \3 M9 U, u0 z* ?
2.D 文章第二段第二、三句已经说明,选项A、B、C均是多种维生素片所含的物质,只有D项没有提及,而且也不可能。
- S1 D: w: c. r+ T* z/ C 3.A 关于多种维生素制剂的作用,B项在第四段第二句提到,C项在第三段倒数第三句提到, D项在第三段最后两句提到,只有A项在第四段倒数第二句中提到它时却说维生素对它不起什么作用。
2 V6 Z6 i3 i" ~( i- b. N9 n M 4.B 第三段最后一句是文章中唯一一句说明淋巴细胞在身体中的作用的句子,故是正确答案,其他A、C、D三项都与淋巴细胞无关。1 [! V" H& U6 f4 d' S* r: f+ G
5.A 第四段第一句和第二句已经将本题答案说得很清楚,其中的just under eight percent (只不足8%)正是A项的less than 8%。
, l e4 n" c! P& \ Warm People Likely to Keep Cold at Bay1
4 O, k y5 }9 {: D3 u' L9 d Staying positive2 through the cold season could be your best defense against getting iii, new study findings suggest. is an experiment that exposed healthy volunteers to a cold or fluvirus3, researchers found that people with a generally sunny disposition4 were less likely to fall ill.
- u8 m8 ~7 g4 Y: f8 Q4 k0 v# J The findings, published in the journal Psychosomatic Medicine, build on evidence that a “positive emotional style” 5 can help ward off the common cold and other illnesses. Researchers believe the reasons may be both objective as in happiness boosting immune function and subjective as in happy people being less troubled by a scratchy throat6 or runny nose.
9 |" @! E3 B" B+ C; C) k “People with a positive emotional style may have different immune responses to the virus,”explained lead study author Dr Sheldon Cohen of Carnegie Mellon University in Pittsburgh. “And when they do get a cold, they may interpret their illness as being less severe.”
1 V; O7 O. E8 ?! s7 [2 l F2 w6 L. | Cohen and his colleagues had found in a previous study that happier people seemed less susceptible to7 catching a cold, but some questions remained as to8 whether the emotional trait itself had the effect.
0 X/ x! h) b! b6 k/ M2 R j For the new study, the researchers had 193 healthy adults complete standard measures of personality traits, self-perceived health and emotional “style”. Those who tended to be happy, energetic and easy going were judged as having a positive emotional style, while those who were often unhappy, tense and hostile had a negative style.. G" l: f9 N2 d$ S ?
The researchers gave them nasal drops containing either a cold virus or a particular flu virus. Over the next six days, the volunteers reported on any aches, pains, sneezing or congestion they had, while the researchers collected objective data, like daily mucus production. Cohen and his colleagues found that based on objective measures of nasal woes, happy people were less likely to develop a cold.: C% J) }( j1 p
词汇: V0 U$ h( l4 B& X. h
bay/bei/n.绝境,穷途末路 flu/flu:/流感/(influenza的简称)流(行性)感(冒) virus/5vaiErEs/n.病毒 disposition/dispE5ziFEn/n.本性,性情
& W6 U- y& c6 h psychosomatic/7saikEusEu5mAtik/adj.心身的,身心的 boost/bu:st/v.提高,举起
2 s& P$ ~ n( o5 N scratchy/5skrAtFi/adj.刺痛的,使人发痒的 runny/5rQnI/adj.流粘液的0 o$ t. V& u/ l
' ~% Z1 y) e0 K
pittsburgh/5pitsbE:^/n.匹兹堡(美国城市) colleague/5kCli:^/n.同事 |