[填空题]What is mainly narrated in the first paragraph They are the ______ and ______ through the rainforest, the moist breath of the surrounding rain forest.

[单项选择]What is the conversation mainly about

What is the conversation mainly about
A．Online shopping. B．New technology. C．Computers. D．Book stores.
A. Online shopping.
B. New technology.
C. Computers.
D. Book stores.

[填空题]What is the first advertisement mainly about It is mainly about ____________________.

[填空题]The United States government wants to know what the public thinks about its findings on the safety of (36) animals.
The Food and Drug Administration says meat and milk from clones of adult cattle, pigs and goats are safe to eat. An FDA (37) called them "as safe to eat as the food we eat every day."
And when those clones (38) sexually, the agency says, their (39) are safe to eat as well. But research on cloned sheep is limited. So the FDA (40) that sheep clones not be used for human food.
The United States this year could become the first country to (41) the sale of foods from cloned animals.
First, however, the public will have ninety clays to (42) on three proposed documents. On December twenty-eighth the FDA released a long report, called a draft risk (43) , along with two policy documents.
(44) . The FDA seemed ready to act several years ago, but an adv

[单项选择]Having no language, infants cannot be told what they need to learn. Yet by the age of three they will have mastered the basic structure of their native language and will be well on their way to communicative competence. Acquiring their language is a most impressive intellectual feat. Studies of how children learn language generally agree that the most remarkable aspect of this feat is the rapid acquisition of grammar. Nevertheless, the ability of children to conform to grammatical rules is only slightly more wonderful than their ability to learn words. It has been reckoned that the average high school graduate in the United States has a reading vocabulary of 80,000 words which includes idiomatic expressions and proper names of people and places. This vocabulary must have been learned over a period of 16 years. From the figures, it can be calculated that the average child learns at a rate of about 13 new words per day. Clearly a learning process of great complexity goes on at a rapid ra
A. Language acquisition in children.
B. Teaching languages to children.
C. How to memorize words.
D. Communicating with words.

[填空题]What is the first advertisement mainly about
It is mainly about ____________________.