题目

冬天用被子将热饭包裹起来，过了好久米饭仍然是热的，这是因为（      ）。 A . 被子产生热量 B . 被子传递热量 C . 被子有保温作用 答案：C7．We all know that many inventions have changed our life a lot．They play important roles in our daily life．Here are some interesting inventions．MorpherPeople refuse to wear helmets because they're thick and heavy．Morpher is a bike helmet made of plastic．It is just as strong as traditional helmets，but it can be folded almost completely flat，making it easier to carry．Morpher may be available for sale in stores in the near future．Hyper AdaptHave you ever seen the movie Back to the Future？Maybe everyone wants the pair of shoes in the movie that can tighten or loosen by themselves．Now，thanks to the Shoe Factory，the dream is realized．When you push a button on the shoe，Hyper Adapt can tighten or loosen around the feet．FlyteFlyte is a light bulls that can float（漂浮）and turn．Flyte has been popular with most people since it came out in January．The company also introduced a lot of similar products，including a planter，lyfe，which came out in June．Little PrinterIt looks lovely and is called Little Printer．This machine can print news headlines（摘要），riddles and other things on a roll（卷）of paper．If you want to make your own little newspaper，don't forget to use it．阅读上面的信息，选择正确答案．56．Morpher is made ofB．A．steel              B．plastic         C．gold      D．wood57．What's the main use of the Little Printer？DA．To protect our heads more safely．B．To tighten or loosen by themselves around the feet．C．To float and turn in the water              D．To print news headlines，riddles and other things．58．The underlined word"button"meansA in Chinese．A．按钮            B．门铃            C．电梯               D．键盘59．What kind of invention can float in the passage？CA．Morpher．B．Little Printer．C．Flyte．D．Hyper Adapt．60．Which of the following is WRONG according to the passage？CA．Maybe everyone wants the pair of shoes in the movie Back to the Future．B．You can make your own little newspaper with the Little Printer．C．Flyte has been popular with most people since it came out in February．D．Morpher can be folded almost completely flat，making it easier to carry．