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The scientists are trying to unveil the history of the universe.（翻译）
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更多“The scientists are trying to u…”相关的问题
A.comment
B.commence
C.command
D.commute
A.lead to
B.come up with
C.carry out
D.stick to
A.In terms of
B.On behalf of
C.On the basis of
D.in the form. of
Where to call: 24 hour general information (410) 686-5225 24 hour
STARLINE night sky information (410) 539-STAR
Group visitor information (410) 68502370
Hours: The Maryland Science Center is open 7 days a week (except Thanksgiving Day and Christmas Day) Monday–Friday 10 am–6 pm Saturday and Sunday 10 am – 8 pm
1.What can visitors do at the Maryland Science Center？()
A、Learn science by trying it out.
B、Watch and take part in a play.
C、Make gifts for their friends.
2.The Maryland Science Center usually stays open on weekends()
A、from 10 am -- 6 pm
B、from 10 am -- 8 pm
C、24 hours
3.By calling (410) 685-2370 we can get information about()
A、the night sky show
B、books and games
C、group price tickets
4.“Take part of the Science Center home with you” means that()
A、visitors can buy something there and take them home
B、the Science Center may be sold to visitors.
C、the visitors can make the Science Center their home
5.Which is true about the MarylandScienceCenter？()
A、Visitors can play and learn at the same time.
B、It helps visitors travel to other countries.
C、It can be visited 24 hours a day
A、create
B、created
C、have created
D、has created
Language is always changing.The earliest known languages had complicated grammar but a small, limited vocabulary.Over the centuries, the grammar changed, and the vocabulary grew.For example, the English and Spanish people who came to America during the sixteenth and seventeenth centuries gave names to all the new plants and animals they found.In this way, hundreds of new words were introduced into English and Spanish vocabularies.Today life is changing very fast, and language is changing fast, too.
There are several major language families in the world.Some scientists say there are nine main families, but other scientists divide them differently.The languages in each family are related, and scientists think that they came from the same parent language.
We learn our own languages by listening and copying.We do this without studying or thinking about it.But learning a foreign language takes a lot of study and practice.
(1).What do all languages in the world have？
A.Complicated vocabularies
B.Single grammar
C.Large vocabularies
D.A system of sounds
(2).What does the earliest known languages have？
A.Different word orders
B.Difficult grammar
C.Difficult vocabularies
D.Easy sound system
(3).What did the English and Spanish people who came to America do？
A.They gave names to different animals
B.They found many new plants and animals
C.They changed the grammar of English and Spanish
D.They introduced new words into English and Spanish
(4).Scientists think that the languages in each family_________________________.
A.are related
B.should be divided differently
C.should be separated
D.are not very different
(5).According to the passage, we learn our own language by_________________________.
A.thinking about it
B.practicing it
C.listening and copying
D.studying it
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