Street sellers, particularly in developing countries, supply large amounts of food ____1____ people on low incomes. This sector also employs some 6-25% of the work force, mainly women, in developing countries, and provides markets for agricultural and other produce. In many countries, _____2____, the authorities are not willing to recognize it _____3____ a formal sector of the food supply system, they may ignore it in food control programs or even try to put an end to ____4____.
There are two possible contaminants: pathogenic micro-organisms _____5____ hazardous chemicals. As _____6___ as micro-organisms are concerned, there is apparently no convincing evidence that street foods are more involved in1 the transmission of infection than foods obtained in, e.g., hotels. Studies in Egypt and elsewhere have found street foods to compare not unfavorably with2 hotel ____7___ in respect of3 contamination with micro-organisms-some street foods were found to be contaminated with pathogens, but so were foods from four-and five-star ____8____ in the same area.
Hazardous chemicals have been found in street foods, and food exposed for sale on roadsides may become contaminated by lead from vehicle exhausts4.
Health dangers may arise ____9____: purchase of raw _____10____ of poor quality; improper storage, processing, and cooking, leading ____11_____ reuse of water; limited piped drinking-water; lack of refrigeration; unsatisfactory waste-disposal facilities5; and personal cleanliness.
The authorities should take ____12____ account the potentials of different categories of food for transmitting disease, and should control appropriately for the different _____13_____sellers of bottled drinks require less control than those of food. Dry foodstuff, dried grains, and sugared foods are less likely to transmit disease than gravies, cooked rice, and low-acid milk, egg, and meat products. Similarly foods which are thoroughly cooked and eaten at _____14_____ are safer than precooked food dept at high temperatures ____15____ several hours.
1. A) for B) on C) by D) at
2. A) but B) however C) besides D) what
3. A) to B) about C) as D) of
4. A) them B) those C) its D) it
5. A) and B) or C) for D) with
6. A) farther B) far C) more D) many
7. A) disease B) diseases C) food D) foods
8. A) hotels B) houses C) buildings D) generals
9. A) at B) with C) from D) to
10. A) food B) thing C) matters D) materials
11. A) to B) about C) from D) around
12. A) at B) to C) into D) in
13. A) price B) prices C) category D) categories
14. A) once B) twice C) all D) home
15. A) about B) at C) before D) for
[情态动词]情态动词的语法特征
代词精讲(1)
[情态动词]情态动词+ have +过去分词
[情态动词]will和would
代词精讲(15)
代词精讲(14)
英语讲义【11】语态被动有方
英语讲义【8】英语多义词
英语阅读基本功—长难句过关(6)
代词精讲(4)
虚拟语气考试要点详解
2007年英语阅读基本功之难句过关大全
[连词]表示选择的并列结构
代词精讲(5)
英语阅读基本功—长难句过关(8)
代词精讲(18)
[情态动词]比较can 和be able to
英语阅读基本功—长难句过关(1)
英语阅读基本功—长难句过关(12)
代词精讲(3)
英语阅读基本功—长难句过关(3)
英语阅读基本功—长难句过关(11)
代词精讲(12)
代词精讲(11)
分词的用法详解
英语大师谈英语学习方法
代词精讲(2)
动名词考试要点详解
代词精讲(17)
英语倒装结构
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |