[填空题]The higher a substance’s pH, the more acidic it is.

[填空题]The higher a substance’s pH, the more acidic it is.

[单项选择]2. Finding Yourself without GPS
As more mobile phones tap into the Internet, people increasingly turn to them for location-centric services like getting directions and finding nearby restaurants. While Global Positioning System (GPS) technology provides excellent accuracy, only a fraction of phones have this capability. What’s more, GPS coverage is spotty in dense urban environments, and in—phone receivers can be slow and drain a phone’s battery.
To sidestep this problem, last week Google added a new feature, called My Location, to its Web-based mapping service. My Location collects information from the nearest cell-phone tower to estimate a person’s location within a distance of about 1,000 meters. This resolution is obviously not sufficient for driving directions, but it can be fine for searching for a restaurant or a store. "A common use of Google Maps is to search nearby," says Steve Lee, product manager for Google Maps, who likened the approach to searching for something
A. Right
B. Wrong
C. Not mentioned

[简答题]Outline: 1. Pollution is becoming more and more serious all over the world. 2. People are showing a growing concern over the problem. 3. Fortunately, measures have been taken to cope with the situation.

[单项选择]Acidic tongue-lashings from American Idol judge Simon Cowell could deflate anyone’s musical aspirations, but many Idol losers are finding that second-chance success isn’t a bad consolation prize.
William Hunt, the laughingstock of the third season, already has an album out. The 31-year-old engineering student performs comical covers of popular tunes by R. Kelly, Elton John, The Beach Boys, Enrique Iglesias and, of course, the Ricky Martin numbers that made him infamous.
In its first week, the CD cracked Billboard’s Top 40, selling more than 38,000 copies. The self-proclaimed Real American Idol has appeared on everything from The Today Show to The Tonight Show, and even sang at a nationally televised NBA game. On May 15 he’s scheduled to share the same stage as Jessica Simpson, Lenny Kravitz, OutKast and Janet Jackson at the Wango Tango Music Festival at the Rose Bowl in Pasadena, Calif.
Who is the laughingstock of Idol’s third season
A. Jessica Simpson
B. William Hunt
C. Lermy Kravitz
D. Janet Jackson

[填空题]Acid rain has made numerous lakes so acidic that they ______.

[简答题]More and more people in today’s society are affected by such diseases as high blood pressure, heart disease and diabetes. A recent survey shows that due to the unhealthy living habit, many fat kids are also suffering from these diseases.
Write on ANSWER SHEET TWO a composition of about 200 words on the following topic:
THE IMPORTANCE OF FORMING A HEALTHY HABIT FROM CHILDHOOD
You are to write in three parts:
In the first part, state specifically what your opinion is.
In the second part, support your opinion with appropriate details.
In the last part, bring what you have written to a natural conclusion or a summary.
Marks will be awarded for content, organization, grammar and appropriateness . Failure to follow the above instructions may result in a loss of marks.

[单项选择]More and more of the world’s supply of seafood is coming from farms.
Although 80% of the world’s seafood comes from marine harvests, there is a major shift under way toward aquaculture now.
Nearly 40% of salmon marketed today are raised in captivity, compared with 6% a decade ago. Forty percent of all clams, oysters, and mussels are produced in farm environments, along with 65% of freshwater fish. Between 1990 and 1996, fish-farming production rose from 12.4 million to 23 million tons worldwide, writes Anne Platt McGinn in an article for World Watch magazine.
"The fact that world seafood supplies continue to increase at all is due almost entirely to the phenomenal growth in aquaculture," says McGinn, a research associate at the World Watch Institute. Commercial aquaculture is driven by rising human population at a time when over harvested wild fish stocks are in decline and conven- tional farm production has leveled off.
Biotechnology is contributing to high-yield a
A. the major resource of seafood
B. a pollution-free industry
C. the major source of protein
D. an industry of sustainable development