【正文】 s train through the tunnel 73．The island of Great Britain is ．connected to France all the time B．separated from France with a tunnel C．separated from France all the time D．joined to France with the tunnel 74．Which of the following is right? A．Napoleon made plans for the ．The public could pass through the tunnel by train after May 6, ．The tunnel was built for two ．The tunnel will do great good to Britain and ．Before 1994, one could go to Britain from France ．only by ship B．by ship or plane C．by car or train D．by ship, car or train keys: DCBD R About ten men in every hundred suffer from color blindness in some are luckier, only about one in two hundred is affected in this , after all, it is safer to be driven by a woman!There are different forms of color some cases a man can not see deep may think that red, orange and yellow are all shades of a person cannot tell the difference between blue and rare cases an unlucky man may see everything in shades of greena strange world blindness in human beings is a strange thing to a single eye there are millions of very small things called“cones”.These help us to see in a bright light and to tell difference between are also millions of“rods” but these are used for seeing when it is nearly show us shape but no insects have favorite (蚊子)like blue but do not like red light will not attract insects, but a blue lamp a similar way human beings also have favorite we are the aid of the cones in our eyes we can see many beautiful colors by day, and with the aid of the rods we can see shapes at day we may even learn more about the invisible(看不見的)colors ．Why do some people say it is safer to be driven by women? A．Women are more ．There are few colorblind ．Women are fonder of driving than ．Women are weaker but quicker in thinking passage is mainly about ．color and its surprising effects B．women being luckier than men C．danger caused by color blindness D．color blindness 78．According to the passage, with the help of the“cones”，we can ．tell orange from yellow B．see in weak light C．kill mosquitoes D．tell different shapes 79．We can attract and kill mosquitoes by using a ．red light B．yellow light C．blue light D．green light keys:DABCS Until late in the 20th century, most Americans spent time with people of midaged Americans may not keep in touch with old people until they are old ’s because we group people by put our threeyearolds together in daycare center, our 13yearolds in school and sports activities, and our 80yearolds in seniorcitizen ? We live away from the old for many reasons: young people sometimes avoid the old to get rid of fears for aging and is much harder to we love disappear before our it’s so hard that we stay away from the people who need us ,.some of us have found our way to the we have discovered that they often save the reporter moved her family onto a block filled with old first her children were the reporter baked banana bread for the neighbours and had her children deliver it and the children had many new friends, with whom they shared food, stories and projects.“My children have never been less lonely,” the reporter young, in turn, save the I was in a rest home when a visitor showed up with a was immediately who hadn’t gotten out of bed in a week suddenly were ringing for a those who had seemed asleep wake up to watch the have an astonishing power to fort and are a special give grandchildren a feeling of security and my husband put it, “my grandparents gave me a deep sense that things would turn out right in the end.”Grandchildren speak of attention they don’t get from worried parents.“My parents were always telling me to hurry up, and my grandparents told me to slow down,” one friend teacher told me she can tell which pupils have relationships with grandparents: they are quieter, calmer, more Now in an American family, people can find that never live with their parents all working people live with their parents people are supported by their grandchildren are supported by their grandparents 81 The reason why old people are left alone may be that old don’t like to live in a big family young can’t get 。s Queen Elizabeth Ⅱ and France39。being on time is valued highly in American life, for people are not on time, they may be regarded as impolite or not fully the USA no one would think of keeping a business friend for an hour。Wobum High had won.“No one would have known,” said Wobum’s instructor, Bob Rota, it wasn’t difficult decision: “The prize wasn’t ours to take.” Coin Stars “College students are lazy, but they also want to help,” says University of Pennsylvania graduate Dana she made it easy, placing cups in rooms where students could leave their spare coins, and handing out cups to firstyear students to keep in their “Change for Change” effort has collected $40, 000 for charities(慈善機(jī)構(gòu)), which were decided upon by Forgotten A school in Massachusetts received a $ million check from Jacques it took officials several days of digging to discover his connection to the showed the on hard times, he was offered free room and became a trader, owned shares of ATamp。 5 cent Copper coins are: 2 amp。 Public has a decimal currency（十進(jìn)幣制）with 100 cents to the available are $100, $50, $20, $10, $5 Gold Coins are $2 amp。s First real inventions, and one of the most important inventions in history, was the transportation and machine in the world depend on wheel is the simplest yet but perhaps the most remarkable(值得注意的)of all there are no wheels in nature—no living thing was ever created with , then, did man e to invent the wheel? Perhaps some early hunters found that they could roll the carcass(尸體)of a heavy animal through the forest on log more easily than they could carry , the logs themselves weighed a must have taken a great prehistoric(史前的)thinker to imagine two thin slices(薄片)of log connected at their centers by a strong stick, this would roll along just as the logs did and axle came into being, and w