In case of emergency, whether knowing how to apply first aid or not really ________ in matters concerning wounds like swollen wrists, broken arms, burns, cuts, and so on.

A. makes difference    B. makes a difference    C. makes differences   D. makes different

Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies need．It has been demonstrated（证明）that rats will, when given a choice over a period of time, prefer water with vitamins(维生素) to water without vitamins even though there is no difference in taste or smell between the two water bottles．When a fragrant（香的）flavor（作料）was added to the vitamin-enriched water, the rats did seem to prefer it and kept drinking it ,even after the vitamins were switched to the clear water．In time, however, they broke the habit and went back to where the necessary vitamins were．

In a classic experiment, babies of 6 to 12 months old were placed in a cafeteria（自助） feeding arrangement, with a wide selection of baby food before them．They were given whatever food they pointed to or appeared interested in．We are told that at first they showed some unusual eating patterns, but that over a period of time they managed to select well-balanced diet．

So, in choosing food, rats and babies do seem to know and act on what's best for them．Apparently, there is a kind of “body wisdom”, which humans soon lose．Most of us do not eat as wisely as we could．Many of our food preferences are culturally determined and influenced by long-formed habits．Some people eat fox, dog and blackbirds, while we eat cows and pigs．So what people eat and how much they eat seems to be greatly influenced by what is going on around them．

In the experiment on rats, a fragrant flavor was added to the rats’ drinking water to _____________ .

     A．encourage rats to drink vitamins-enriched water

     B．test whether rats know which drink is good for them

       C．find out rats’ preference in flavor

     D．demonstrate the vitamins are tasteless

According to the passage ,adults eating habits differ from those of babies because_________．

       A．adults know better than babies what kind of food are good for their health

       B．adults usually cannot resist the temptation of various delicious foods

       C．adults have more choices of food than babies in eating patterns

       D．adults' eating habits are closely related to the social and cultural customs

The author implied in the passage that most of us_________．

       A．eat a balanced diet

       B．choose the food that is of nutrition

       C．have the habits influenced by the surroundings

       D．like to eat the food with a fragrant flavor．

As far as their eating habits are concerned, babies and rats are similar in that_________．

       A．both prefer flavored food and drink

       B．both have the wisdom to choose a balanced diet

       C．both have the same eating patterns

       D．both develop a taste for the same kinds of flavors

China has input several billion yuan of money to stop the dirty water waste on the upper and middle area of the Pearl River from polluting the lower reaches of the river, especially the Macao Spe??cial Administrative Region．

The Guangxi Zhuang Autonomous Region in the upper and middle reaches of the Pearl River has been rapidly urbanized（城市化）and industrialized in recent years, leading to a rise in the amount of urban rubbish to the damage of the land, rivers and atmosphere．

Refuse dumps and special plants in most cities treat rubbish to make it harmless, with 5,800 tons of wastes being burnt, buried or made into fertilizers on a daily basis．

He Suping, a woman engineer with the water re??sources department in Guangxi said, it is imperative for the autonomous region to treat sewage wastes to protect the area’s Karst terrain（喀斯特地形）and rain water which brings contact between groundwater and surface water, making groundwater more easily polluted．

The Xijiang River, a branch of the Pearl River which runs from Guangxi to neighboring Guangdong Province, provides fresh water for a number of river??side cities such as Macao, Zhuhai, Zhongshan and Zhaoqing, so Guangxi must begin to treat rubbish quickly to protect the water sources, said Liu Chen, a senior engineer with the Ministry of Water Resources．

The government 2001—2006 plan to spend bil??lions of yuan to turn wastes harmless has been mainly provided by national debt payments and overseas in??vestment．So far wastes treatment projects have re??ceived a total of 400 million yuan（48 million US dol??lars）from national debts and 60 million yuan（7．22 million US dollars）from overseas loans（贷款）．

The main idea of the passage is __     

       A．A large number of waterways have been polluted in China up to now．

       B．Guangxi and Guangdong have taken the lead in making water clean．

       C．China's rivers are badly in need of improve??ment．

       D．China is making efforts to reduce pollution of the rivers．

The main idea of the last paragraph is __

       A．The government has no ability to afford the expenses of treating wastes．

       B．The government has a long-term plan to treat wastes．

       C．National debt payments and overseas investment are taking an important part in developing China's economy．

       D．A great deal of money is needed in dealing with wastes．

The basic reason why the amount of urban rubbish rises in Guangxi lies in _____．

       A．the improvement of people’s living standard

       B．people’s wasting too much

       C．urbanization and industrialization

       D．too many tourists’ coming

The word “imperative” here probably means _______．

       A．unnecessary          B．important            C．easy          D．unbelievable

Most children with healthy appetites are ready to eat almost anything that is offered and a child rarely dislikes food __________ it is badly cooked．

       A．if           B．until              C．that              D．unless

Only the factory ____ yesterday ____  this kind of machines.

A. did we visit; does it produce          B. did we visit; produces

C. we visited; produces                   D. we visited; does it produce

He stood last but one among the twenty interviewees, ________, he failed the interview. 

    A. in other words                B. in this way     C. in general  D. in detail

You don’t want your parents to critisize you_______ you stop wearing long hair at school.

   A. unless       B. if            C. though         D. so that

阅读下面短文, 按照句子结构的语法性和上下文连贯的要求, 在空格处填入适当的词或使用括号中词语的正确形式填空.

Snake dishes have become popular  recent years. Snake meat in various flavors(风味) is often seen in restaurant advertisements. Eating snake seems to be now in vogue(盛行), and      you haven’t eaten snake yet, you are considered “ out of date”. But I wonder whether all the trends are worth       (follow).

   Some people may defend themselves     saying that snake meat is nutritious. But these people don’t realize that many parasites (寄生虫),     (find) inside snakes, will do harm to our health.

   According to a survey, about 1,000 tons of snakes are eaten every year in China and sometimes as many as 10 tons of snakes     (serve) on dinner tables in Shenzhen in a single day!

   These figures warn us that if no      (act) is taken, the number of snakes will drop and that will make      increase in mice and worms population,      will result in a decrease (减产) of crops output. Who will see such tragedy happen?

   So let’s start not to eat snakes any more because “ to protect the snake is to protect  .”

I can hardly say which dish is best –it’s simply a（n） _____ of personal taste．

      A．affair           B．event    C．matter          D．attitude

Eating too much fat can       heart diseases.

A, result from               B, contribute to      C, devote to         D, control of