试题与答案

下表是NaCl、KNO3在不同温度时的溶解度: 跟据表内数据判断,下列说法错误

题型:选择题

题目:

下表是NaCl、KNO3在不同温度时的溶解度:

跟据表内数据判断,下列说法错误的是

A.KNO3和NaCl的溶解度曲线在20℃~30℃相交

B.60℃时,向105g KNO3的饱和溶液中加入95g水,所得溶液的溶质的质量分数为27.5%

C.从含有少量NaCl的KNO3饱和溶液中得到较多的KNO3晶体,通常采用冷却热饱和溶液的方法

D.20℃时,NaCl和KNO3固体各35g分别加入两只各盛有100g水的烧杯中,充分搅拌后均能形成饱和溶液

答案:

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阅读理解。

     Teachers spend countless years trying to make history come alive for their students. However, US Director

Shawn Levy tries to do this on film in the recently released (发行) Night at the Museum.

     The film is adapted from Milan Trenc's book of the same name. It brings to life a world where dinosaurs

wander the earth, a former president rides again, warlike early Asians return, and cowboys and Roman soldiers

seek to bring back their old goals.

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位) as night watchman at the New York Museum of Natural History.

     On Larry's first night, he's left alone by the three aging guards he's replacing. They fail to inform him of

the museum's rather unusual nightlife.

     Soon Larry finds himself chased(追逐) down the hallways by the very lively skeleton(骨架, 骷髅) of a

dinosaur, in the middle of a confrontation(交锋) with Asian warriors. He is caught in a battle between a

cowboy and a Roman general and meets face-to-face with former US president Teddy Roosevelt, played by

Robin Williams.

      They are each from an exhibit that has come to life through the magic of a priceless Egyptian tablet(药

片).

      While the film fails to develop very much in some areas (for example, Larry's troubled relationship with a

son), it does have enough special effects, and jokes to amuse the audience.

     Bottom Line: Definitely not Oscar-worthy, but a great way to relax during a holiday.

1.The purpose of this passage is to ________.

A. introduce a book called Night at the Museum

B. introduce a movie called Night at the Museum

C. made known a US director Shawn Levy

D. make students learn history easier

2. We can know from the first paragraph that _________.

A. teachers don't do well in their jobs

B. a director can do a better job than teachers

C. people can learn some history through a film

D. all history classes should be stopped

3. Which of the following is NOT true?

A. The film has the same name as the book.

B. Larry Daley is a character in the film.

C. Teddy Roosevelt was once a US president.

D. All magic Egyptian tablets are on exhibition.

4. On Larry's first night in the film, ________.

A. three aging guards are involved in a battle

B. he doesn't know the unusual nightlife beforehand(预先)

C. a Roman general plays many jokes on a cowboy

D. he is caught by a wandering dinosaur

5. We can infer that Night at the Museum ________.

A. is a good time-killer during a holiday

B. will surely win an Oscar

C. is not a good film at all

D. will be popular among students

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