Question

9．People who do not get enough vitamin A in their diet may develop night blindness．But in the developing world a lack of vitamin A causes much more serious harm to children．The World Health Organization links the lack of vitamin A to as many as 250.000 child deaths every year．
    One excellent source of vitamin A is found in sweet potatoes with orange flesh．Orange sweet potatoes contain high levels of beta-carotene（胡蘿卜素），which our body can change into vitamin A． Experts say orange sweet potatoes specially bred （育種，培植） for growing conditions in Africa
could help solve the lack of vitamin A there．
     But，first，more people will need to be persuaded to eat them． Jan Low with the International Potato Center，a research organization says the sweet potato needs a better image in Africa． Jan Low says，…We do have an image problem with sweet potato in general in sub-Saharan Africa． It is seen as a crop of the poor．"Ms Low explains that sweet potatoes are mainly grown by poor women to feed their families in case another crop fails． The sweet potatoes commonly grown if Africa have white or yellow flesh． But，more importantly，they are low in vitamin A．
    Jan Low took part in a project to study how best to market orange sweet potatoes to Africans．She worked on an information campaign in Mozambique and Uganda．The campaign included radio messages about the nutritional benefits of the orange sweet potato．They advertised its ability to"fight diseases，make you strong，clear your skin and make you look healthy．"In areas without radio，the campaigners spread the message through community theater．The performances included singing，dancing and storytelling．And everywhere they went，the campaigners wore orange T-shirts and hats．They even drove orange vehicles．Jan Low says the color made it easier to gain public attention．
   Dan Gustafson heads the Washington office of the United Nations Food and Agriculture Organization． He points toefforts in the past to increase the popularity of other nutritious crops． He says most of these efforts failed because organizers of the campaigns did not consider what people wanted to eat．But Mr．Gustafson sees a better chance for the efforts to increase the popularity of the orange sweet potato in Africa． For one thing，except for the color，the vegetable is similar to what people already use．
66．What does the writer want to tell us in Para． 1？B
A． Vitamin A in food may cause night blindness．
B． People should get enough vitamin A in their diet．
C． The developing countries are in lack of vitamin A．
D． Vitamin A causes too many child deaths every year．
67．According to the passage，which of the following statements is NOT true？A
A． Orange sweet potato contains high levels of vitamin A．
B． Jan Low tries to persuade more people to eat orange sweet potato．
C． The campaign aims to advertise the benefit of orange sweet potato．
D． Fighting diseases，making you strong，clearing your skin and making you look healthy are the ability of the orange sweet potato．
68．Jan Low works forB．
A． the World Health Organization
B． the International Potato Center
C． the government of Mozambique and Uganda
D． the United Nations Food and Agriculture organization
69．The underlined phrase"points to"of Para． 5 is closest in meaning toD
A． lets            B． brings          C． takes           D． mentions
70．The passage mainly talks aboutA．
A． an image problem with orange sweet potato              
B． an information campaign in sub-Saharan area
C． the popularity of vitamin A                            
D． the function of vitamin A in people's diet．

Answer 1

分析 本文主要介紹了紅薯中含有豐富的維生素A．文章講述了人們?cè)陲嬍持胁荒艿玫阶銐虻木S生素A，為了說(shuō)服越來(lái)越多的人吃紅薯，研究組織說(shuō)，需要在非洲給紅薯建立一個(gè)更好的形象．

解答 66．B 理解推斷題．根據(jù)第一段People who do not get enough vitamin A in their diet may develop night blindness．But in the developing world a lack of vitamin A causes much more serious harm to children．可知在飲食中沒(méi)有得到足夠的維生素A的人可能會(huì)發(fā)展成夜間失明．但在發(fā)展中國(guó)家，缺乏維生素A對(duì)兒童造成更嚴(yán)重的傷害．由此可知，作者在第一段中想告訴我們：人們應(yīng)該在他們的飲食中得到足夠的維生素A．故選B．
67．A 細(xì)節(jié)理解題．根據(jù)第二段Orange sweet potatoes contain high levels of beta-carotene（胡蘿卜素），which our body can change into vitamin A．可知橙色甘薯中含有高濃度的β-胡蘿卜素，我們的身體可以將其轉(zhuǎn)化成維生素A．故選A．
68．B 細(xì)節(jié)理解題．根據(jù)第三段Jan Low with the International Potato Center，a research organization says the sweet potato needs a better image in Africa．可知Jan Low為國(guó)際馬鈴薯中心工作．故選B．
69．D 詞義辨析題．根據(jù)第五段He points toefforts in the past to increase the popularity of other nutritious crops．可知Dan Gustafson指出過(guò)去的努力提高了其他營(yíng)養(yǎng)作物的歡迎度．由此推知"points to"的意思是"指出，提及"．故選D．
70．A 主旨大意題．全文主要講述了為了說(shuō)服越來(lái)越多的人吃紅薯，需要在非洲給紅薯建立一個(gè)更好的形象．故選A．

點(diǎn)評(píng) 本文考察學(xué)生的理解推斷能力以及細(xì)心程度，只要抓住文章的關(guān)鍵詞，采用尋讀的方法查找細(xì)節(jié)，就能找到正確答案．