[简答题]{{B}}Section B{{/B}}
Directions: In this
section, there is one passage followed by 5 questions. Read the passage
carefully, then answer the questions in a maximum of 10 words.
Questions 61-65 are based on the following
passage.
Your passport is your official identification
as an American citizen. In America, most people never consider obtaining a
passport unless they are planning a trip out of the country. A passport is final
proof of identity in almost every country in the world. In 1979 almost 15
million Americans held passports. Most of these passports were obtained to
travel outside the country because, except for a few Western nations, passports
are required to enter every country. And if you travel abroad, you must have a
valid passport to reenter the country.
When traveling abroad,
you will need a passport for identification when exchanging dollars for francs
or marks or other foreign
[填空题]
{{B}}Section A{{/B}}
Directions: In this
section, there is a passage with ten blanks. You are required to select one word
for each blank from a list of choices given in a word bank following the
passage. Read the passage through carefully before making your choices. Each
choice in the bank is identified by a letter.
Most people are aware that outdoor air pollution can damage
their health, but many do not know that indoor air pollution can also have
significant health effects. Environmental Protection Agency studies indicate
that indoor levels of pollutants may be 2-5 times, and {{U}} (47) {{/U}}
more than 100 times, higher than outdoor levels. These levels of indoor air
pollutants may be of particular concern because most people spend about 90% of
their time {{U}} (48) {{/U}}.
There are many sources of
indoor air pollution in any home. These include combustion sources such as oil,
gas, coal, wood, and toba
