光在同种______中沿直线传播;光从一种介质传播到另一种介质,传播方向____

题型:填空题

问题:

光在同种______中沿直线传播;光从一种介质传播到另一种介质,传播方向______发生改变(均选填“一定”或“不一定”),光在真空中的传播速度最快,其速度是______m/s.一束阳光通过棱镜后在后面的白色光屏上,我们可以看到一条彩色光带,人们把这种现象叫做光的______.这一现象说明太阳光是______.(填“单色光”或“复色光”)

考点:光的色散,色光的混合,物体的颜色光的传播速度与光年光的折射现象
题型:填空题

阅读理解。

     Guo Liqin, 24, works as a primary school teacher in a distant area in Yunnan Province. The Internet

offers him the latest news and entertainment from the outside world. And many people like him also

depends on the online libraries for the free literature (文学) reading.    

     A survey in China last year found the online literature is the biggest growth area of Internet entertainment.

     Reading for free is also popular in other countries. See what solutions other countries are taking.

     Public Libraries

     In countries such as Germany, Canada, and the UK, governments pay the authors to have their books in

public libraries.

     The pay is different from country to country. Some pay according to how many times a book has been

borrowed; others pay according to whether the library has bought the book or not.

     Google Books

     Google Books allow users to see some free parts before buying them.

     The author can choose to make from 20% to 100% of the book's content (内容) for free reading. But

you can see a full view of books that are out of copyright (版权).

     E-magazines

     E-magazines are usually about pop culture, and make money through advertisements. The writers are

usually paid by the numbers of words they write.

     Digital Library

     There are many free online libraries of books which are no longer in copyright.

     American and European websites offer classic (古典的) literature and non-fiction texts like dictionaries

for download in different languages.

1. Guo Liqin depends on _______ for free reading.

A. online libraries

B. city bookstores

C. school libraries

D. borrowing books

2. From the passage we know other countries are taking _______ solutions for reading for free.

A. 3

B. 4

C. 5

D. 6

3. In some countries, the authors are paid by _______ to have their books in public libraries.

A. advertisements

B. readers

C. governments

D. the word numbers

4. Google Books and Digital Library allow users to read the full books _______.

A. which are out of copyright

B. which are in copyright

C. which are about pop culture

D. which have some free parts

5. The best title of the passage is _______.

A. Enjoy Reading

B. Learn How to Read

C. The Importance of Reading

D. How to Read for Free

题型:填空题

阅读下列材料,回答相关问题:(16分)

材料一 

唐朝的三省六部制

材料二 本朝家法,自皇祖皇考以来,一切用人听言大权,从无旁落,即左右亲信大臣,亦未能有荣辱人,能生死者。

——清·乾隆帝

材料三 凡未经议会同意,以国王权威停止法律或停止法律实施之僭越权力,为非法权力。

——《权利法案》

材料四 有明之无善治,自高皇帝(明太祖)罢丞相始也。

——黄宗羲

(1)材料一中唐朝的三省六部制是怎样运作的?其意义如何?(7分)

(2)材料二中乾隆的言论反映出我国古代政治具有什么基本特征?(2分)

(3)根据材料三说明,与乾隆帝相比,英国国王的权力有何不同?(2分)

(4)你怎样理解材料四中黄宗羲的观点?(3分)

(5)根据上述材料,你从中得到了怎样的启示?(2分)

题型:填空题

圆的周长是这个圆的______的3倍多一些,这个数是固定的,把它叫做______,用字母______表示,圆的周长用字母______表示.

题型:填空题

女性,50岁。左肩疼痛,向左上臂放射,伴肩关节活动受限1月余,加重,夜间痛影响睡眠7天。既往有左肩部外伤史。查体:左肩部肌肉萎缩,肩关节活动受限,尤其是左上肢外展和旋转时较甚。肩前有局限按痛点,畸形不明显。

最可能的诊断是().

A.左肩关节软组织挫伤

B.左肩风湿性关节炎

C.左肩部肌肉劳损

D.左肩关节周围炎

E.颈椎病

题型:填空题

"What's he doing for vacation? He's _________ at home, and he's feeling _________." [ ]

A. relaxing; relaxed

B. relaxed; relaxing

C. relaxed; relaxed

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