You’ve probably known the crazy traffic in Beijing. Sometimes the cars could hardly move for a long time. The terrible traffic is caused by the poor road and China’s ability to cope with (对付) so many cars on the road at the same time.
With more Chinese people buying cars every day, the problem seems to only get worse. But a design company called Shenzhen Hashi Future Parking Equipment has a possible solution: the super bus.
The super bus would carry up to 1,400 people in its passenger compartment (隔间). It would travel on a rail system that would be elevated (升高的) above the roads, so cars could drive under it. The bus will run on electricity and solar power, creating far less pollution than that from the cars it would be replacing (代替).
Beijing authorities haven’t decided whether to create railways for the super bus throughout the city. But they are willing to give it a test drive. Later 2010, the company will test for the first time and in 2011 and 2012, the company will test the super bus with passengers.
According to the government, Beijing is probably to have five million cars on the road by the end of 2010. So it seems to be necessary to start taking the bus instead soon.
【小题1】__________ caused the terrible traffic in Beijing.

A kind of little cars may some day take the place of today’s cars. If everyone drives such cars in the future，there will be less pollution from the cars. There will also be more space for parking cars in cities，and the streets will be less crowded. Three such cars can park in the space now needed for one car of the usual size.
The little cars will cost much less to own and to drive. Driving will be safer，too，as these little cars can go only 65 kilometers an hour. The cars of the future will be fine for getting around a city，but they will not be useful for long trips. Little cars will go 450 kilometers before needing to stop for more gas(汽油).
If big cars are still used along with the small ones，two sets of roads will be needed in the future. Some roads will be used for the big，quick cars and other roads will be needed for the slower，smaller ones.
【小题1】There is much pollution from the cars today because________.

On June 26, 2000, two scientists, called Francis Collins and Craig Venter, told the world that they could read the whole “map” of the human body: DNA. DNA is something that everybody has, and it tells the body what to do. DNA is the reason that we look like our mother and father, because we get some of their DNA to make our own.
People have been trying to understand the human body for a long time. In 1860, Gregor Mendel discovered a special reason why we look the same as other people in our family. It is because of small things named “genes” in our body. In 1953, James Watson and Francis Crick made another discovery and found out that those small parts are real messages written in the DNA with a special language.
In 1961, Marshall Nirenberg and Johann Matthaci found a message in DNA showing how DNA tells the cell（细胞）to build its parts. Scientists have now found all the words in the DNA map, but we still do not understand what they all do. By understanding what just one “word”   means, we can help save more people from several illnesses.
Most people hope that this will help make better medicine and help sick people. Other people worry that when people begin to know more words and find out lots of other information, we might use it in a wrong way, just to make people more attractive, or stop sick people from getting jobs. Man would have to meet a lot of trouble if DNA technic wasn’t limited（限制）in use.
【小题1】When did we first know why we look like other people m our family?

阅读表达 阅读短文, 按要求完成短文后的各项任务。
In most parts of the world, many students help their schools make less pollution(污染). They join “environment(环境) clubs ”. (1)In an environment club, people work together to make our environment clean. Here are some things students often do.
No garbage(垃圾) lunches. How much do you throw away after lunch? Environment clubs ask students to bring their lunches in bags and the bags can be used again. If the classes make the least garbage, we will report them to the whole school!
No car day. On a no car day, nobody comes to school in a car-----not the students and not the teachers! Cars give pollution to our air, so remember: Walk, jump, bike or run. Use your legs! It's lots of fun!
Turn off the water! Did you know that some toilets(厕所) can waste(浪费) 20 to 40 m³ of water an hour? In a year, that would fill a small river! In environment clubs, students mend(修理) those broken toilets.
We love our environment. (2)Everyone should take _______ to make our environment ______. Let's work together.
【小题1】将(1)句译成汉语。                                                    
【小题2】在(2)句的空白处分别一个适当的词使句意完整、上下文通顺。
   __      _       _
【小题3】How many things can we do to protect the environment in the passage?
                                                                              
【小题4】在文中找出与If it is a no car day, no one will drive a car to school.意思相近的句子。
                                                                              
【小题5】在文中找出最能表达该短文主题的句子。
                                                                            

BEING an astronaut sounds cool, doesn't it? In space, they get to do some pretty amazing things, like floating in zero gravity(重力).
However, there are also plenty of things that astronauts can't do because of their weightless environment, and that's very sad. What's worse, they can't even let their sadness show, because it's impossible to cry in zero gravity.
Of course, astronauts can still produce tears. But crying is much more difficult in space, according to The Atlantic(大西洋月刊) in January. Without gravity, tears don't flow(流动) down out of the eyes like they do here on Earth. This means that when you cry in space, your tears have nowhere to go-they just stick(粘) to your eyes.
In May 2011, astronaut Andrew Feustel experienced this during one of his spacewalks. "Tears," he said, "don't fall off of your eyes...They just kind of stay there."
Besides making your vision(视线)unclear, this can also cause physical pain. Back on Earth, tears are supposed to bring comfort to the eyes. But that's not the case in space. The space environment dries out astronauts' eyes, and when tears suddenly wet the eyes, it can cause pain rather than comfort. "My right eye is stinging(刺痛) like crazy," Feustel told his teammate during the walk.
Since gravity doesn't work in space, astronauts need some extra help to get rid of（除去） the tears. Feustel chose to rub his eyes against his helmet to wipe(擦) the tears away. Another choice is to just wait-"When the tears get big enough they simply break free of the eyes and float around," astronaut Ron Parise told The Atlantic.
There are lots of small things-things like crying-that we are so used to on Earth. We usually take them for granted until they become a problem in a totally different environment, like space.  There, astronauts can't talk to each other directly. They also can't eat or drink in normal ways. They can't even burp (打嗝), because there is no gravity to hold the food down in their stomach. If they do burp, they just end up throwing up（呕吐）everything in their stomach, according to the UK National Space Center.
Therefore, perhaps it's only space explorers who can honestly say: "Gravity, you're the best."
【小题1】From Paragraphs 2 and 3 , we can know that_______.