[单项选择] Most mothers have a good piece of advice: Never go into a supermarket hungry! If you go shopping for food before lunchtime, you’’ll probably buy more than you plan to. Unfortunately, however, just this advice isn’’t enough for consumers these days. Modern shoppers need an education in how and how not to buy things at the grocery store. First, you should check the weekly newspaper ads, find out the items that are on sale and decide if you really need those things. In others words, don’’t buy anything just because it’’s cheaper than usual! "New and Improved!" or "All Natural" on the front of a package influence you. Instead, read the list of ingredients (成分) on the back. Third, compare prices; that is, you should examine the prices of both different brands and different sizes of the same brand. Another suggestion for consumers is to buy generic (普通的) items instead of famous brands. Generic items in supermarkets come in plain packages. These products are cheaper because manufactu
A. suggest consumers to buy generic items instead of famous brands
B. give some pieces of advice to consumers
C. convince readers that the advice of most mothers isn’’t enough for consumers these days
D. persuade consumers not to believe the advertisements

[单项选择] Most mothers have a good piece of advice: Never go into a supermarket hungry! If you go shopping for food before lunchtime, you’’ll probably buy more than you plan to. Unfortunately, however, just this advice isn’’t enough for consumers these days. Modern shoppers need an education in how and how not to buy things at the grocery store. First, you should check the weekly newspaper ads, find out the items that are on sale and decide if you really need those things. In others words, don’’t buy anything just because it’’s cheaper than usual! "New and Improved!" or "All Natural" on the front of a package influence you. Instead, read the list of ingredients (成分) on the back. Third, compare prices; that is, you should examine the prices of both different brands and different sizes of the same brand. Another suggestion for consumers is to buy generic (普通的) items instead of famous brands. Generic items in supermarkets come in plain packages. These products are cheaper because manufactu
A. Generic items never say "New and Improved!" or "All Natural".
B. Generic products are usually cheaper than famous brands.
C. Manufacturers spend less money on packaging of generic items.
D. The quality of generic items is usually as good as that of well-known name brands.

[单项选择]

Most people who go online have mainly positive experience. But, (1) any endeavor—traveling, cooking, or attending school— there are some risks. The online world, like the (2) of society, is made up of a wide array of people. Most are (3) and respectful, but some may be rude and insulting, (4) even mean and exploitative. Children get a lot of benefits from being online, but they can also be (5) of crime and exploitation in this as in any other environment. Trusting, curious, and (6) to explore this new world and the relationships it brings, children need parental (7) and commonsense advice.
Although there have been some highly (8) cases of abuse involving the Internet and online services, reported cases are (9) infrequent. Of course, like most crimes (10) children, many cases go unreported, especially if the child is (11) in an activity that he or she does not wan
A. worried
B. concerned
C. anxious
D. nervous