Lesson Six Text A Diamonds Diamonds are rare, beautiful, and also quite useful. They are the hardest substance found in nature. That means a diamond can cut any other surface. And only another diamond...
Without air, there would be no fire. There would be no cars or trucks, since motors need air in order to work. Without air, there would be no wind or clouds. There would be no weather, as we know it.(...
Most of them travel 40,000 miles to a satellite and then back to earth. Ten years ago, a satellite was capable of receiving and transmitting more than 33,000 telephone conversations simultaneously. No...
LESSoN EIGHT TEXT Telecommunication via Satellite At the beginning of the twentieth century, there were four powerful means of transmitting and receiving information over long distances: print, photog...
9) The number of violent acts on televisions in the past years __ has increased __ (increase) from about 19 to 27 per hour. (15A 2004 上 ) 10) Your mind _ will keep ___ (keep) up with your reading sp...
6. 将来完成时 Will have + 过去分词 By the time you are back this evening, I’ll have done all the work. By the time we get to their house, they will have finished____(finish) supper. (2003 上...
动词的时态 备考要点：英语中常用的时态有 12 种。在英语（一）考试的 词形填空题 中，经常被测试的动词时态有：一般现在时、一般过去时、 一般将来...
LESSoN SEVEN (B) The Changing American Family The family is important to people all over the world although the structure of the family is quite different from one country to another. In the United St...
Traditionally ,( 状语，修饰全句 ) all the members of an extended family lived in the same area. However, with the change from an agricultural to an industrial society, many nuclear families mov...
LESSoN SEVEN TEXT A Families Family -- the word has different meanings for different people, and even the dictionary gives us several definitions: a group of people related by blood or marriage, two a...
