A.It should rain
C.Should it rain
D.It will rain
Amazon rain forest, normally one of the world's wettest regions, shows the weather cycle is swinging to one extreme rather than signaling climate change, local meteorologists said Thursday. Water levels on two major Amazon tributaries, Madeira and Solimoes, dropped to record--38-year lows respectively, creating long delays in fiver traffic, the main form. of regional transport.
Dry weather also fanned huge forest fires, notably in the remote western State of Acre. But weather forecasters added that elsewhere in continentally sized Brazil, seasonal spring rains had started in the south and were spreading northwards through Brazil's major coffee belt and gradually into soybean areas in the center-west. "The Amazon drought shows extreme climate variability, not climatic change," said Jose Marengo, researcher at the Weather Forecasting and Climatic Studies Center, part of the National Institute of Space Research. Marengo said that normal rains were forecast for the south Amazon --the States of Acre and Rondonia, southern part of Para State and northern part of Mato Grosso State.
"Rain is forecast in Acre in the next couple of weeks," he said, adding that the region is normally dry between June and September and wettest in December and January. But we are a bit worried that there could be less rain than usual at the mouth of the Amazon, around Belem, he said, noting that extreme climatic events were occurring more frequently, "We could be seeing the first symptoms of changing cycles." Meteorologists discounted a link between unusually severe hurricanes in the Gulf of Mexico and drought in the Amazon.
Dry weather in the Amazon is linked to warmer ocean surface temperatures in the Pacific and to low sunspot activity, said Expedito Rebello, head of applied meteorology at the government's National Institute of Meteorology in Brasilia. "It's a phenomenal (不同寻常的) drought and could be linked to a warmer Pacific and little sunspot activity," Rebello said, noting extremely low water levels in the Amazon. But he added that the weather cycle would reach a low next year and then start to moderate. Paulo Etchitchury, director of private meteorologists Somar, said that the Pacific should start to enter a cooler period next Brazilian summer and this could result in a weak La Nina weather pattern. "It won't affect summer rains and it's still very early to talk about next winter," he said, adding that La Nina doesn't necessarily signal a cold winter and extra risk of frost damage to Brazil's coffee crop, the world's biggest.
Brazil was in a transitional period between the dry May/August winter and rainy spring which started in south Brazil in September, Etchitchury said. He said that this year weather conditions are in general seasonally normal in Brazil's main farming areas, except that drought in the Amazon could affect Mate Grosso, Brazil's main soy state. "Rains in the south are replenishing (补充) a water deficit and providing reserves for summer soy and com harvests," he said, adding, "Last September was hot and dry and people were worried about drought damage to crop flowering."
Even today, many experts say women scientists are often not treated fairly. The Washington Post newspaper reported a study about the number of research articles published in medical magazines in which a woman was the main writer. Women were the main writers only twenty-nine percent of the time. Nancy Andreasen is a scientist at the University of Iowa. Scientists like Miss Andreasen often send stories about their research to special professional publications. Miss Andreasen says her research is published more often when she signs them as N.C. Andreasen rather than Nancy Andreasen. In that way, the editors of the publications do not know if the writer is a man or a woman.
Women also receive fewer patents for their inventions. A p
She says that the goods and services provided by nature — like clean air, rain or () soils — should not be taken for granted.
According to the passage, the preservation of rain forests ________.
A) may hamper a developing country in its fight against poverty
B) benefits developed countries rather than developing countries
C) should take priority over the control of human population
D) will help improve the living conditions in developing countries
The main idea of this passage is _______.
A．it is nature itself that should take the blame for the decline of North Africa
B．climatic changes coupled with forest abuse result in the decrease of forests in North Africa
C．without sufficient forests, the rains will take away all the organic nitrogen
D．since Roman times the rain forests in North Africa has been decreasing gradually
Our earth has been threatened by all kinds of pollutions.
Acid rain is a kind of air pollution which is hanging
over our heads and coming down from many different 【S1】______
ways such as rain and snow. It damages forests, lake and 【S2】______
rivers, buildings and even human health. Several
chemicals, including of sulfur dioxide, nitrogen 【S3】______
oxides and ozone, are involved in causing acid rain.
These chemicals either come directly from power
station chimneys and cars, and are formed from a 【S4】______
combination of pollutant gases. Sulfur dioxide is the
one chemical what is often associated with acid rain. 【S5】______
It is mainly emitted by large coal burning power
stations. It affect places thousands of miles away as 【S6】______
well as areas around the power stations. To prevent
more or worse environmental effects from acid rain, 【S7】______
we have short-term and long-term solutions. We should 【S8】______
just clean up our power station chimneys and car exhausts.
We should also change the way society thinks and reacts.
We need to conserve energy by decreasing efficiency. 【S9】______
We also need to change our way of transport, that is,
create a more efficient transport system which
depends less on private cars and more a good public 【S10】______
transport network. Everybody should work together
to save the world.
W: Well, according to the weather forecast, you should take your raincoat or umbrella with you.
Q: What does the woman mean？
A．It will probably rain tomorrow.
B．She needs a new raincoat or umbrella.
C．She doesn't know where the man put his raincoat or umbrella.
D．She doesn't know what the weather will be like tomorrow.
You shouldn't ____ that last week and you should do it next week.
A) have done B) do C) be doing D) have to do
In the ________ of my doctor, I should be well enough to travel by next week.
Since we have made all these regulations what we should do next is__________(让这些规章制度尽早生效)．
A．She should do the man a favor.
B．She should sort out the relevant material of the meeting.
C．She should arrange the next meeting.
D．She should go to see the manager.