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Why were there no phone calls before 4?A.The secretary was ont.B.The line was out of order
Why were there no phone calls before 4?
A.The secretary was ont.
B.The line was out of order.
C.People didn't phone until 4.
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Why were there no phone calls before 4?
A.The secretary was ont.
B.The line was out of order.
C.People didn't phone until 4.
完形填空。 | ||||
At the beginning of this century, medical scientists made an interesting discovery: we are built not just of flesh (肌肉) and blood but also of time. They were1to show that we all have a 'body clock'2us, which controls the3and fall of our body energies,4us different from one day to the next. The5of a 'body clock' should not be too6since the lives of most living things are controlled7the 24-hour night-and-day cycle (循环). We fell8and fall asleep at night and become9and energetic during the day. If the 24-hour cycle is10most people experience unpleasant11, For example, people who are not 12to working at night can find that13of sleep causes them to14badly at work. 15the daily cycle of sleeping and16, we also have other cycle which17longer than one day. Most of us would18that we feel good on some days and not so good on19; sometimes our ideas seem to flow and at other times, the20do not exist. | ||||
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??????You might think that “global warming” means nothing more than a rise in the world’s temperature. But rising sea levers caused by it have resulted in the first evacuation of an island nation -the citizens of Tuvalu will have it leave their homeland.????
????During the 20th century, sea level rose ??8-12 inches. As a result, Tuvalu has experienced lowland flooding of salt water that has polluted the country’s drinking water.??
??Paani Laupepa, a Tuvaluan government official, reported to the Earth Policy Institute that the nation suffered an unusually high number of fierce storms in the past ten years. Many scientists connect higher surface water temperatures resulting from global warming to greater and more damaging storms.??
??Laupepa expressed dissatisfaction with the United States for refusing to sign the Kyoto Protocol,an international agreement calling for industrialized nations to reduce their green house gas emissions(导致温室效应的气体排放),which are a main cause of global warming. “By refusing to sign the agreement, the US has effectively taken away the freedom of future generations of Tuvaluans to live where their forefathers have lived for thousands of years.” Laupepa told the BBC.??
??Tuvalu has asked Australia and New Zealand to allow the gradual move of its people to both countries.??
??Tuvalu is not the only country that is vulnerable (易受影响的)to rising sea levels. Maumoon Gayoon, president of the Maldives, told the United Nations that global warming has made his country of 311,000 an “endangered nation”.
??The text is mainly about_________.????
A.rapid changes in earth’s temperature
B.bad effects of global warming
C.moving of a country to a new place
D.reasons for lowland flooding
The country whose situation is similar to that of Tuvalu is__________.
A.Australia
B.New Zealand
C.the Maldives
D.the United States
Laupepa was not satisfied with the United States because it did not__________.A.agree to reduce its greenhouse gas emissions
B.sign an agreement with Tuvalu
C.allow Tuvaluans to move to the US
D.believe the problems facing Tuvalu were real
According to scientists,the DIRECT cause of more and fiercer storms is__________.A.greenhouse gas emissions in industrialized nations
B.higher surface water temperatures of the sea
C.continuous global warming
D.rising sea levels
A、 Hadn’t it been for
B、Had it not been for
C、Had it been for
D、Had not it been for
A、Heart rate↑, Sympathetic nerve activity↑, Total peripheral resistance↑.
B、Heart rate↓, Sympathetic nerve activity↑, Total peripheral resistance↑.
C、Heart rate↑, Sympathetic nerve activity↑, Total peripheral resistance↓.
D、Heart rate↓, Sympathetic nerve activity↓, Total peripheral resistance↓.
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