[单项选择]The police warned the residents in the area to keep their doors and windows ______ at night.
A. closed
B. closing
C. to close
D. to be closed

[单项选择]The police warned the residents in the area to keep their doors and windows （　） at night.
A. closed
B. closing
C. to close
D. to be closed

[单项选择]The police warned people to be ______ against burglary during the festival.
A. in guard
B. on guard
C. under guard
D. like guard

[单项选择]The {{U}}residents {{/U}}in this area are mostly rich enough to afford this kind of products.
A. inhabitants
B. citizens
C. civil
D. urban people

[单项选择]It''s reported that the police are _______the area for the criminal(罪犯).
A. processing
B. operating
C. searching
D. handling

[单项选择]Scientists have warned that penguins in the Antarctic could be very________to changes in climate and could be threatened by any long-term temperature shifts.
A. superstitious
B. acceptable
C. suspicious
D. susceptible

[单项选择]The IMF warned recently that continuing strong domestic demand could ______ a new jump in the US current account balance of payments deficit.
A. drag
B. nurture
C. trigger
D. launch

[单项选择]The medical experts warned the authorities of the danger of disease in the ______ of the earthquake.
A. consequence
B. aftermath
C. result
D. affect

[单项选择]It is highly （） that all postgraduate students keep a daily record of their reading as well as a personal journal.
A. advise
B. advised
C. advising
D. advisable

[单项选择]

Text 2
Scientists have long warned that some level of global warming is a done deal—due in large part to heat-trapping greenhouse gases humans already have pumped skyward. Now, however, researchers are fleshing out how much future warming and sea-level rise the world has triggered. The implicit message: "We can’t stop this, so how do we live with it" says Thomas Wigley, a climate researcher at NCAR.
One group, led by Gerald Meehl at NCAR, used two state-of-the-art climate models to explore what could happen if the world had held atmospheric concentrations of greenhouse gases steady since 2000. The results: Even if the world had slammed on the brakes five years ago, global average temperatures would rise by about 1 degree Fahrenheit by the end of the 21st century. Sea levels would rise by another 4 inches over 20th-century increases. Rising sea-levels would continue well beyond 2100, even without adding water from melting glaciers and i
A. the impact of climate change is relatively minor.
B. the global warming is inevitable in the near future.
C. concentrations of greenhouse gases cannot beheld steady.
D. the atmospheric conditions will be better than people think.

[单项选择]The readers were warned to be cautious when buying items ____________.


A. on credit
B. at a discount
C. on promotion
D. advertised in television

[单项选择]What was the danger Albert Einstein had warned Roosevelt about

[单项选择]After the holiday makers were warned of a rockslide, they all ______.
A. ran to it
B. ran for it
C. ran from it
D. ran away off it