People on ___ banks of the river are expecting a good harvest in autumn.

A. all    B. two    C. either    D. both

People on ___ banks of the river are expecting a good harvest in autumn.

1. A.
   all
2. B.
   two
3. C.
   either
4. D.
   both

Britain’s seed(种子) bank, the only one in the world aiming to collect all of the planet’s wild plant species, has reached its goal of banking 10 percent by 2010.
The Millennium Seed Bank Project, run by Kew Gardens—one of the oldest botanical(植物的)  gardens—will officially place the 24,200th species on Thursday, a pink, wild banana from China.
More than 50 countries are now on board with Kew's giant task but vast places of the globe, including India and Brazil, still need to join in and donate seeds, director Paul Smith said.                                                                                                                                                            
The seed bank is one of the largest and most diverse(多样的) in the world with more than 1.5 billion seeds. Its goal is to help protect the planet’s bio-diversity during a time of climate change.
The wild banana seed is under threat of extinction(灭绝) in southwest China from agricultural development. It is a vital food source for Asian elephants and important for growing bananas for human eating.
Stored at minus-20 degrees centigrade, so they can last for thousands of years, the seeds await the day that scientists hope never comes—when the species no longer exist in the wild.
It is a race against time, Smith said, because in the last ten years alone, 20 plants held in the bank have already been wiped out in the wild. He estimates that between a third and a quarter will become extinct this century.
"It is pressing and it is happening now. An area, the size of England, is cleared of primary vegetation（植被）every year." Smith said.
Because most of the world's food and medicines come from nature, protecting wild plant species is quite important, scientists say. There are already many other seed banks safeguarding food crops, which only account for 0.6 percent of plant diversity.
For Kew's next goal—to collect a quarter of wild varieties（种类）by 2020—the botanists need 10 million pounds a year, or a further 100 million pounds on top of the 40 million they have already been granted.
【小题1】What’s the final purpose of the Britain’s seed bank?

     Along the river banks of the Amazon and the Orinoco there lives a bird that swims before it can fly, flies like a fat chicken, eats green leaves, has the stomach of a cow and has claws (爪) on its wings when young. They build their homes about 4.6m above the river, an important feature (特征) for the safety of the young. It is called the hoatzin.

      In appearance, the birds of both sexes look very much alike with brown on the back and cream and red on the underside. The head is small, with a large set of feathers on the top, bright red eyes, and blue skin. Its nearest relatives are the common birds, cuckoos. Its most striking feature, though, is only found in the young.

      Baby hoatzins have a claw on the leading edge of each wing and another at the end of each wing tip. Using these four claws, together with the beak (喙), they can climb about in the bushes, looking very much like primitive birds must have done. When the young hoatzins have learned to fly, they lose their claws.

      During the drier months between December and March hoatzins fly about the forest in groups of 20 to 30 birds, but in April, when the rainy season begins, they collect together in smaller living units of two to seven birds for producing purposes.

1．What is the text mainly about?

    A．Hoatzins in dry and rainy seasons.

    B．The relatives and enemies of hoatzins.

    C．Primitive birds and hoatzins of the Amazon.

    D．The appearance and living habits of hoatzins.

2．Young hoatzins are different from their parents in that        ．

    A．they look like young cuckoos

    B．they have claws on the wings

    C．they eat a lot like a cow

    D．they live on river banks

3．What can we infer about primitive birds from the text?

    A．They had claws to help them climb.

    B．They could fly long distances.

    C．They had four wings like hoatzins.

    D．They had a head with long feathers on the top.

4．Why do hoatzins collect together in smaller groups when the rainy season comes?

    A．To find more food.

    B．To protect themselves better.

    C．To keep themselves warm.

    D．To produce their young.

The gigantic dam of the multi-function water control facility would be finished nine months ahead of schedule, said an engineer who is in charge of the Three Gorges Project. He said by June, the workers would have built the half-done dam from the southern bank of the river to the height of 185 meters. The Three Gorges Project will be capable of controlling the floods on the Yangtze by then and generating more electricity. And the level of the water stored in the reservoir will rise from 135 meters at present to 156 meters.
Situated near the Xiling Gorge, the easternmost gorge of the Three Gorges on the middle reaches of the Yangtze River, the Three Gorges Dam is designed to have a length of 2,309 meters and a height of 185 meters.
It will also have the functions for flood control, power generation and navigation. It will be built from northern and southern banks of the Yangtze, which has been troubled by floods for hundreds of years.
Launched in 1993, the Three Gorges Project, including the 185-meter-high dam and 26 generators on both banks of the Yangtze, is being built in three phases. The preparations and construction of the first phase were carried out between 1993 and 1997. The Yangtze was dammed at the Three Gorges area for the first time on November 8, 1997. 
The entire Three Gorges Project is expected to be completed in 2009 and by then, it will be able to generate 84.7 billion kwh of electricity every year.
63. The underlined word in the fourth paragraph might mean ____.
A. places   B. periods  C. gorges   D. dams  
64. According to the passage, we know _______.
the construction will be completed ahead of time 
the biggest function of the dam is used to control flood 
the Three Gorges Dam will be finished in ten years
the dam will be 156 meters tall when it is finished
65. Which of the following statements is TRUE according to the passage?
A. The Yangtze River was first dammed in the year 1993.
B. The water level in the reservoir will remain at 135 meters.
C. The Three Gorges Dam is on the easternmost part of the river. 
D. The first phase of this project is finished in 1997.