What is the development trend of cattle industry in the world？

The APEC dialogues are______.

A．links of mutual restraint and dependence

B．bonds of development of world economy

C．forms of doing business in the region

D．ties of mutual benefit and multilateral trade development

Which of the following is NOT the reason for the greenhouse effect？

A．Uncontrolled development.

B．A warming atmosphere at a global level.

C．Sunlight reaches the forest floor, dries plants and lights fires.

D．No limits on logging and bad fire preventing efforts.

Paragraph 3 __________ 查看材料

A.A Fairly New Development

B.Classics of Science Fiction

C.Difficulty in Keeping ahead of Scientific Advances

D.Origins of Science Fiction

E.Themes of Modern Science Fiction

F.Pooularitv of Science Fiction

Which kind of program is probably NOT welcomed by most of the students？

A.Software development.

B.Decoration and design.

C.International trade.

D.Company management.

Which of the following statements is best supported by paragraph 4？

A．Agricultural development contributed to development in other parts of the economy.

B．European agricultural products were of a higher quality than those produced in the United States.

C．The growing settlement of the West led to a decrease in agricultural production.

D．Farmers were influenced more by government policies than by market opportunities.

This passage implies that ______.

A．globalization is good for a country's economic development

B．globalization is widely accepted and advocated by people

C．globalization is too influential on a country's economy to be accepted

D．globalization is not always of great benefit to a country's economic development

Which of the following statements is NOT true？

A．The popularity of TV enhanced the development of animation.

B．Nightmare is the first full-length model animation feature.

C．James and the Giant Peach is a model animation feature.

D．The article focuses on the most advanced animation techniques nowadays.

Paragraph 4 __________ 查看材料

A.A Fairly New Development

B.Classics of Science Fiction

C.Difficulty in Keeping ahead of Scientific Advances

D.Origins of Science Fiction

E.Themes of Modern Science Fiction

F.Pooularitv of Science Fiction

People used to think that poverty and unemployment were due to________.

A．the slow development of the economy

B．the poor and jobless people's own faults

C．the lack of responsibility on the part of the society

D．the large number of people who were not well-educated

Why Don't Babies Talk Like Adults？

Over the past half-century,scientists have settled on two reasonable theories related to babytalk.Onestates that a young child's brain needs time to master language, in the sameway that it does to master other abilities such as physical movement. Thesecond theory states that a child's vocabulary level is the key factor.According to this theory, some key steps have to occur in a logical sequencebe-fore sentence formation occurs. Children's mathematical knowledge developsin the same way.

In 2007, researchers at Harvard University, who were studying the twotheories, found a clever way to test them. More than 20,000 internationallyadopted children enter theU. S.each year. Many of them no longer heartheir birth language after they arrive, and they must learn' English more orless the same way infants do-that is, by listening and by trial and error.International adoptees don't take classes or use a dictionary when they arelearning their new tongue and most of them don't have a well-developed firstlanguage. All of these factors make them an ideal population in which to testthese com-peting hypotheses about how language is learned.

Neuroscientists JesseSnedeker, Joy Geren and Carissa Shafto studied the language development of 27children adopted fromChinabetween the ages of two and five years. These children began learn- ing Englishat an older age than US natives and had more mature brains with which to tacklethe task. Even so, just as with American-born infants, their first Englishsentences consisted of single words

and were largely bereft(缺乏的)of functionwords, word endings and verbs. Theadoptees then went through the same stages as typical American-born children,though at a faster clip. The adoptees and native children started combing wordsin sentences when their vocabulary reached the same sizes, fur-ther suggestingthat what matter is not how old you are or how mature your brain is, but thenumber of words you know.

This finding-that havingmore mature brains did not help the adoptees avoid the toddler-talkstage-suggests that babies speak in babytalk not because they have baby brains,but because they have only just started learning and need time to gain enoughvocabulary to be able to expand their conversa-tions. Before long, the one-wordstage will give way to the two-word stage and so on. Learning how to chat likean adult is a gradual process.

But this potential answeralso raises an even older and more difficult question Adult immigrants wholearn a second language rarely achieve the same proficiency in a foreignlanguage as the average child raised as a native speaker. Researchers have longsuspected there is a "critical period" for language developm'ent,after which it cannot proceed with full success to fluency. Yet we still do notunderstand this critical period or know why it ends.

What is the writer's main purpose in Paragraph 2？

A.To reject the view that adopted children need two languages

B.To argue that culture affects the way children learn a language

C.To give reasons why adopted children were used in the study

D.To justify a particular approach to language learning