In those hard days, we could not leave behind________came to us for help.
A．who B．whomever
C．no matter who D．whoever
The singer and________dancer is said to perform in our school on________May Day.
A．the; 不填 B．a；不填
C．不填； the D．不填； 不填
—Could we go and visit the Summer Palace?
—Yes，________.This should be on our list of things to do in Beijing.
A．a pleasure B．it depends
C．don't mention it D．by all means
For many the idea of your dream home is not buying a bigger home，but a home that you have built by yourself. A house that is unique and fit for your tastes and your lifestyle. It sounds great but where do you begin to design your dream home? Here is a quick guide that can help you make your dreams come true.
The first step is to get an idea of what type of home you want. You can get inspiration from others. Drive around to neighbourhoods that have the styles of homes you like and take pictures. You can also cut out pictures from magazines, newspapers, or print out pictures you find on the Internet.
The next step will be to make two lists of items for yourself. The first list will be those items or features that you feel your new home must have，such as granite counter tops or a hot water heater. The second list will be those items or features that are on your wish list like a fireplace or slate floors.
At this point you will probably have a good idea of what your dream home will look like, so you will need to seek some professional help. You will need to hire an architect to put your ideas down on paper.You may need to interview a few different architects to find one that you are comfortable with. Make sure whomever you choose for final drawings has a full understanding of local building codes and zoning bylaws. In any ease your final plan will need to be approved by the city and a building permit must be obtained before any construction can begin.
It is time to look for a contractor(承包人). Whichever way you can do it in, be sure you are comfortable with your contractor and you have got references from his past clients. Remember the more homework you do in the beginning, the more enjoyable the process will be.
It's hardly surprising that weather is a favorite topic for so many people around the world—it affects where we choose to live, what we wear, our moods, and perhaps even our national characteristics.Studies have shown that changeable weather can make it difficult to concentrate, cloudy skies slow down reaction, and hot，dry winds make many people badtempered.
If you live in a place like Britain, where the weather seems to change daily if not hourly，you could be forgiven for thinking that the weather is random.In fact the weather is controlled by systems which move around areas of the globe.In the UK the weather depends on depressions (低压气流), often called lows，and anticyclones(反气旋)，also known as highs.These systems start in the Atlantic Ocean, and make their way across the British Isles from the west to the east.Highs bring sunny weather, while lows bring rain and wind.In modern times, human activities seem to be altering weather patterns.Gases produced by heavy industry change the temperature of the earth's surface，and affect cloud formation.Some researchers say that factories in Europe and North America may have been one of the causes of the droughts in Africa in the 1980s.
The human race has always tried to guess the weather，especially in areas of the world where there are frequent changes.Traditional rhymes point to early attempts to identify weather patterns; popular poems include：
Red sky at night, shepherd's delight；red sky in the morning, shepherd's warning.
Flies will swarm before a storm.
Rain before 7，clear by 11.
While folk wisdom can provide a guide to help forecast weather, today's methods of prediction increasingly rely on technology.Satellites, balloons，ships, aircrafts and weather centers with sensitive monitoring equipment, send data to computers.The data is then processed, and the weather is predicted.However，even this system cannot predict weather for longer than about a week.
1.When weather keeps changing，________.
A．people become badtempered
B．people's reaction slows down
C．people find it hard to focus on their work
D．people find it easy to focus on their work
2.The weather in Britain is________.
A．random B．moist
C．depressing D．satisfying
3.According to a traditional rhyme, if there is a red sky at night, the next day will be________.
A．windy B．rainy
C．fine D．snowy
4.Which of the following statements is TRUE?
A．Anticyclones often bring rain and wind.
B．Weather forecasting has been done for a long time.
C．Weather could never be predicted.
D．Modern methods of weather prediction are developed from folk wisdom.
5.What is mainly talked about in the second paragraph?
A．Changes in weather.
B．Weather in Britain.
C．African droughts.
D．Research on weather.
The United States is not part of the Kyoto Protocol.But since 2005 more than 1,000 mayors across the country have agreed to sign their own version of the protocol.
It is called the United States Conference of Mayors' Climate Protection Agreement.Local leaders have agreed to follow the suggestions of the Kyoto Protocol in their communities.They have also agreed to urge state and federal governments to follow these suggestions.One goal is to reduce air pollution to the 1990 levels by 2012.
A “green” city might work on several kinds of environmental goals and programs.These include air quality，reducing electricity use, green building, public health, the reuse of materials, water quality and clean transportation.
The Natural Resources Defense Council works to protect the environment through action, law and science.One of its online projects is called Smarter Cities, which lists some cities that have made important environmental steps.
Washington，D.C.is also a leading city for green roofs，with over 92,000 square meters of green rooftops.The city also launched a program called “Skip the Bag，Save the River.”Stores charge people a fivecent tax for using plastic or paper shopping bags instead of reusable bags.Money from the tax will be used to clean up a local river.
New York City is using water as a renewable energy source.For several years, the city has experimented with water in the East River to create energy.Officials operating the program recently asked for permission to put into place 30 river turbine devices.
The people of Portland, Oregon are among the top recyclers in the nation.People living there recycle over half of the waste they throw out.The city has also worked to provide green transportation by providing safe bike paths and free parking spaces where electric cars can get recharged.
In Oakland, California, you can ride on one of several public hydrogenpowered(氢气作燃料的) buses.These buses release zero pollution into the air.However，they cost about five times more than common buses.
1.The United States Conference of Mayors' Climate Protection Agreement is aimed at________.
A．reducing energy use
B．reducing air pollution
C．improving public health
D．reusing waste materials
2.Why are shoppers charged a fivecent tax for buying shopping bags?
A．To clean a local lake that has been polluted.
B．To get enough money for the green roof project.
C．To prevent shoppers from using reusable bags.
D．To collect money for an environmental project.
3.New York City is cited as an example of________.
A．building green rooftops
B．making transportation clean
C．being good at recycling waste
D．using renewable energy source
4.Which of the following cities encourage citizens to use bicycles?
A．Washington，D.C. B．New York.
C．Portland. D．Oakland.
5.One obvious disadvantage of adopting hydrogenpowered buses is________.
A．its high cost B．side effect
C．zero pollution D．large space
