大学四六级英语大全

In every cultivated language there are two great classes of words which, taken together, comprise the whole vocabulary.First, there are those words 1 ...

Today the car is the most popular sort of transportation in all of the United States.It has completely 1 the horse as a 2 of everyday transportation.A...

We have spoken of marriage as a formal contract.It should be noted, however, that this contract does not 1 the same form in different societies.In Wes...

Today, most countries in the world have canals.Many countries have built canals near the coast, and parallel 1 the coast.Even in the twentieth century...

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 res...

Reading involves looking at graphic symbols and formulating mentally the sounds and ideas they represent.Concepts of reading have changed 1 over the c...

Children model themselves largely on their parents.They do so mainly through identification.Children identify 1 a parent when they believe they have t...

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 t...

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 prot...

　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...