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The study shows that one group of children is fairly stable _____ the second group is severely disturbed.
A.while
B.though
C.when
D.even
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A.while
B.though
C.when
D.even
A.biocide
B.suicide
C.biology
D.decision
A.while
B.though
C.when
D.even
A.Americans like to claim happiness
B.American college students are active
C.America has close relationship with Slovenia
D.Americans are not as happy as they appear to be
A study published recently in the journal Nature shows that air-borne leaded gas emissions from the United States were the leading contributor to the high concentration of lead in the snow in Greenland. The new study is a result of the continued research led by Dr. Charles Boutron, an expert on the impact of heavy metals on the environment at the National Center for Scientific Research in France. A study by Dr. Boutron published in 1991 showed that lead levels in arctic (北极的) snow were declining.
In his new study, Dr. Boutron found the ratios of the different forms of lead in the leaded gasoline used in the United States were different from the ratios of European, Asian and Canadian gasolines and thus enabled scientists to differentiate the lead sources. The dominant lead ratio found in Greenland snow matched that found ingasoline from the United States.
In a study published in the journal Ambio, scientists found that levels in soil in the Northeastern United States had decreased markedly since the introduction of unleaded gasoline.
Many scientists had believed that the lead would stay in soil and snow for a longer period.
The authors of the Ambio study examined samples of the upper layers of soil taken from the same sites of 30 forest floors in New England, New York and Pennsylvania in 1980 and in 1990. The forest environment processed and redistributed the lead faster than the scientists had expected.
Scientists say both studies demonstrate that certain parts of the ecosystem respond rapidly to reductions in atmospheric pollution, but that these findings should not be used as a license to pollute.
The study published in the journal Nature indicates that
A.the Clean Air Act has not produced the desired results.
B.lead deposits in arctic snow on the increase.
C.lead will stay in soil and snow longer than expected.
D.the U.S. is the major source of lead pollution in arctic snow.
The first paragraph indicates that
A.eating chocolate is good for one"s heart
B.people doubt the good effect of eating chocolate
C.eating chocolate may prevent memory loss
D.people should not eat too much chocolate
[<center><strong>The packing</strong></center]
The function of packing mainly shows as follows : packing can be used to protect the goods and keep them as good and complete as they are shipped in the circulation field; packing makes it convenient for stoiing, taking care of, transporting, loading, unloading the goods;strong packing can prevent the goods from being stolen and damaged; reasonable packing can lessen shipping space and save freight. Marketing packing makes it convenient for consumers to select, carry, or use the goods. Marketing packing can also beautify the commodity, attract consumers, expand sales and increase the gains on foreign exchange. In addition to all those mentioned above, packing of the goods, in a sense,incarnates the level of a country's economic construction, science and technology, culture and art, etc.
In order to satisfy the rapid development of our foreign trade,we should grasp the latest achievement of packing science, do well in our export trade, and try to make our packing more scientific, economical, strong, merchantable, and pleasing to the eyes, and do our utmost to increase the foreign exchange eamings. So the following points should be complied with.
We should greatly strengthen the research into packing materials, packing contains and packing methods, in which we should not only attach importance to many years' experience in our packing work but also earnestly study the advanced experience of foreign countries, and start from the reality of our country to continuously improve our commodity packing work.
We should carefully study the packing characteristics, developing tendency and relative packing regulations and decrees in intemational markets so as to make the packing of our export commodity adapted to marketing requirements and consumption habits. Especially we should pay close attention to the needs for our packaging decorations of the goods in foreign supermarkets, and the reasonable stipulations on packing of import countries , thus increasing our commodity sales.
We should strengthen the study of the design for packaging decorations, improve packing techniques, blaze new trails, and continuously increase the artistic level of packing.
We should realize the standardization of our exporting commodity packing and unification of materials, specifications, capacities, standards and sealing methods, only in this way can it be easy to measure,identify,load,unload and transport the goods, so as to promote the smooth fulfillment of business.
On possible conditions, we should properly make acquisition of advanced technology from abroad to help produce the high level and advanced packing materials which we can not make by our technology process,in order to meet the requirements of the international market for high level packaging materials.
Specifically speaking, we should study the packing from both protective and promotional aspects. This kind of product production needed in one market may differ from that needed elsewhere. A hot, humid climate probably requires a package different from that needed in a cooler, drier area. The kind of transportation and ways of handling the product can also dictate package differences. Stronger protection must be built into package if it will be subjected to bad roads, long distances and frequent or rough handling. Long and slow distribution channels also increase the demands on the package. If one market has a three-month cycle of production to final consumption and another market has a six-month cycle , the latter market probably will require a more durable and expensive package. This is especially true if the market with a slow distribution cycle also has bad transportation and other conditions punishing to packages, as is frequently the case. For the reason the poorer countries may require more expensive packaging in spite of' their lower purchasing power. In addition to these conditions within the channel,the way the final buyer uses the product will also affect the package. If the buyer has a slow usage rate and lacks appropriate storage facilities,the demands on the package are increased.
Promotional aspects of packaging, those attributes which help persuade channel members to handle the product and consumers to buy it, often vary among markets, too. Channel members want minimum breakage and theft , plus ease of handling. The retailer is concemed about shelf storage and display. A country with a large number of very small retail outlets may want a package different from the one desired by a country where self- service supermarkets are popular. Because of shopping habit and retail structure, most of the detergent sold in France , Germany , and Spain is packed in three-and-one-half kilogram round drum.
Questions for reading :
Another disadvantage is that TV often causes people to become dissatisfied with their own lives. Real life does not seem as exciting to these people as the lives of actors on the screen. To many people, TV becomes more real than reality, and their own lives seem boring. Also, many people get upset or depressed when they can't solve problems in real life as quickly as TV actors seem to. On the screen, actors solve serious problems in a half-hour program or a thirty-second commercial
Before a child is fourteen years old, he or she views eleven thousand murders on the TV. He or she begins to believe that there is nothing strange about fights, killings, and other kinds of violence. Many studies show that people become more violent after certain programs. They may even do the things that they saw in a violent show
The most negative effect of the TV might be people's addiction to it. People often feel a strange and powerful need to watch TV even when they don't enjoy it. Addiction to a TV screen is similar to drug or alcohol addiction, people almost never believe they are addicted
Read Passage and decide whether the following statements are True or False. Write T for True and F for False against the number of each of the statements on your Answer Sheet
21. TV programs are definitely helpful to anyone
22. There are positive as well as negative effects of TV on our lives
23. TV can help improve one's foreign language
24. Watching a lot of TV won't affect our concentration at all
25. Some children spend more time watching TV than studying and sleeping
26. The lives of people in TV shows seem to be very exciting
27. TV programs can help people solve problems as quickly as the actors
28. TV violence makes some people, especially children, take violence in real Life for
granted
29. One of the symptoms of addiction to television is a strong desire to watch it even if
the program is not interesting
30. The passage mainly discusses the advantages of TV
The attitude of Nicola Baker towards beauty contest shows is that______.
A.women shouldn" t attend these shows
B.the shows are interesting but she doesn"t like them
C.these shows are insults to women
D.these shows are behind the times