As the plane circled over the airport, everyone sensed that something was wrong.The plane was moving unsteadily through the air, and 1 the passengers had fastened their seat belts, they were sudd...
Space is a dangerous place, not only because of meteors(流星) but also because of rays from the sun and other stars.The atmosphere again acts 1 our protective blanket on 2 .
Children model themselves largely on their parents.They do so mainly through identification.Children identify 1 a parent when they believe they have the qualities and feelings that are 2 of that ...
There are more than forty universities in Britain—nearly twice as many as in 1960.During the 1960s eight completely new ones were founded, and ten other new ones were created 1 converting old col...
Reading involves looking at graphic symbols and formulating mentally the sounds and ideas they represent.Concepts of reading have changed 1 over the centuries.
Many people wrongly believe that when people reach old age, their families place them in nursing homes.They are left in the 1 of strangers for the rest of their lives.Their 2 children visit them ...
In every cultivated language there are two great classes of words which, taken together, comprise the whole vocabulary.First, there are those words 1 which we become acquainted in daily conversat...
Music comes in many forms; most countries have a style of their own. 1 the turn of the century when jazz was born, America had no prominent 2 ofits own.No one knows exactly when jazz was 3 ,or by...
Shopping habits in the United States have changed greatly in the last quarter of the 20th century. 1 in the 1900s most American towns and cities had a Main Street.
Current 11 of innateness theory are mixed, however, evidence supporting the existence of some innate abilities is undeniable. 12 , more and more schools are discovering that foreign languages are ...
Most institutions provide courses which 8 new students to develop the skills they need to be 9 listeners and note-takers. 10 these are unavailable, there are many useful study-skills guides which...
For many people today, reading is no longer relaxation.To keep up their work they must read letters, reports, trade publications, interoffice communications, not to mention newspapers and magazines
