One of the most remarkable things about the human mind is our ability to imagine the future. In our  ___43___ we can see what has not yet happened．For example, while we are looking forward to visiting a new place or country, we ___44___ what it will be like. We predict the ___45___ people will eat, dress and act. Of course, we do not always predict things correctly. Things are often very different from the way we ___46___ them to be.

    One of the ___47___ dreams in history is the dream of the German scientist, Kekule, who had been  __48___ to work out a very difficult problem in physics. He had ___49____ and analyzed the problem from every angle for days, but there seemed

to be no way of  ___50___ out the answer. Then one night he went to bed and dreamed．When he ___51___ up, he realized that he knew th e answer. He had solved the problem in his ___52___.

    The hypnotist(催眠者) sat in the chair opposite him and spoke  ___53___ : I want you to concentrate on my voice. Think about nothing. You know nothing but my voice. And as you pay attention to my voice, your ___54___ will get heavier. Soon you will be asleep.

    You will hear my voice and ___55___ my words, but your body will be asleep, your eyes are too heavy. You are almost asleep, and when you wake up you will ___56___ nothing.

    You will forget everything. Now I am going to ___57___ slowly from one to five. One, two, three, four, five…

In the north of Scotland there is a lake called Loch Ness. It is the biggest __41__ in Britain. It is over thirty kilometers long and nearly 300 meters __42__. It is cold and dark and not many people went there until after 1930. Then a road was made __43__ the lake.

     Holiday makers began to use the road, and this was when the __44__began. Someone said that he had seen a monster(妖怪) in the lake. He said it was twelve meters long. It had a long __45__and a small head. Then someone else said he heard__46__. Others said the same thing and in 1933 a London doctor took a __47__. It __48__ like a monster with a long neck and a thick body but the photo was not too __49__. The newspaper printed the picture and __50__ it the Loch Ness monster, or “Nessie”. Then the argument began. __51__ people, however, were certain there was something living in the lake. Others said there was __52__ there. In 1961, a lot of people joined together to make a real __53__ to see and photograph the monster to find __54__ there was one! Several times people thought they saw something but after ten years there was __55__ no real proof（证据）.

      Later underwater television cameras were used, but __56__ found any real proof. However, they__57__ find something interesting: a huge underwater cave. It was big enough to be __58__ of a monster, but of course, this was not a proof. In 1975,however, some American scientists__59__ a search group. They used an underwater camera. It took pictures every seventy seconds. Some of the pictures seemed to show a redbrown creature. Its body was about four meters long, __60__ had a very ugly head on the end of a four-meter neck. Many people then began to believe in the monster. But even today we can’t be certain.

If I could learn one difficult skill, I would learn how to build and fly a model airplane. Model airplanes that are flown by a remote control (遥控器) are very  (1)  to build and control.Many people think of remote-controlled planes as just toys, but in fact theyˈre   (2)  real planes. Since the models are expensive, crashing one is something you really want to   (3)  . You also have to   (4)   things like trees, birds and changes in the wind,   (5)  any one of these could cause your model to crash and do a lot of   (6)   . You really need to learn how to   (7)   the controls and you have to be careful at all times. Carefulness isvery   (8)   when operating a small expensive machine like a model airplane.

Another thing that people have to   (9)   about model airplanes is that they take a long time and a lot of  (10)   to build. Each piece has to be assembled (安装)   (11)   , or the model will not work properly and the motor itself is the hardest part to   (12)  . You canˈt try to do it all   (13)   . You have to go step by step for days so that the glue (胶水) can dry. Once all the   (14)   are assembled, it will look and work just like the real thing. Completing the model brings a feeling of achievement and being able to fly it only   (15)  that feeling.

My   (16)  is to become a pilot one day and flying a remote-controlled model seems like a great way to prepare myself for that   (17)   . Being able to   (18)   one of those could be my first step towards being a real pilot. The controls of a model plane are  (19)  to the controls of a real plane. Once Iˈve   (20)   those controls, I can get used to the controls of a real plane more easily.

Many of the scientists and inventors who lived long ago are remembered today and their inventions are widely used. By today’s   (1)  , they should have been rich and famous.

     (2)  , many of them never tasted the fruit of their success in their lifetime. Many had to spend their own money   (3)  heir inventions. As they didn’t always succeed the  (4)  time, much money was wasted on  (5)  trial experiments.

     (6)   people wanted to lend money to such experiments   (7)   they were not always fruitful. Thus, the inventor had to work with makeshift(凑合的)equipment and tools. Sometimes, they had fulltime jobs which provided them with some funds to finance their experiments   (8)   support their families. But even so, a large amount of money which went into the experiments was taken out of household expenses.

   You can imagine the family   (9)   which it may have resulted in. Poverty, loneliness and failure were more   (10)   among the early pioneers than riches and   (11)  .

Today’s inventors have a   (12)   better deal. Universities and government bodies  (13)   research and development. Funds are  (14)   to do experiments and tests. These  (15)   be in diverse fields like medicine, defense, agriculture, education and housing.

Large companies each   (16)   have a department to develop new products. Inventors and scientists are paid and provided with up-to-date equipment to   (17)   their tests. They are encouraged to discuss their work and   (18)   with other scientists   (19)   seminars(研讨会), the Internet and journals. This interaction   (20)   new heights of achievement.

    Payeng’s tree-planting project began when he was 16，when flooding wiped away a large part of forest．Wild life were left without enough   (1)  ，and Payeng watched   (2)   creatures    begin to die off from heat．Deeply   (3)  ，Payeng determined to grow trees all his life.

“I   (4)   the forest department and asked them if they could grow trees on the sandbar(沙洲)．They said nothing would   (5)   there．  (6)  ，they asked me to try growing bamboo．It was   (7)  ，but I did it．What’s more，there was nobody interested to help me，”Payeng said．

Payeng started his forest by   (8)   bamboo saplings(幼树)every morning and evening．He even brought red ants to the sandbar to help   (9)   the soil．When his bamboo trees grew，Payeng decided to slowly   (10)   other spieces of trees into the sandbar．

Through his   (11)   act. Payeng changed the sandbar into a thick，green forest that   (12)   numerous birds，and wild animals．Payeng’s forest went largely   (13)   until 2008，when a team of state officials   (14)   it．

“We were surprised to find such a big   (15)  on the sandbar,“Gunin Saikia，Assam’s Assistant Conservator of Forests，said．“We are   (16)   at Payeng．He has been at it for 30 years．”   

Now，Payeng makes a   (17)  with his family in the forest he planted by raising cows and selling milk，and he has his   (18)   set on planting a second forest on another 1,300-acre sandbar．

“It may take another 30 years，but I am   (19)  about it，”Payeng said   (20)  ．