两种同主族元素原子的核外电子数差值可能为[ ] A．6 B．12 C．26 D．

“噫”是指

A．嗳气

B．太息

C．呕吐

D．喷嚏

E．呃逆

Most parents and teachers would get angry when they hear that teenagers listen to their iPods while preparing for exams. But pupils who listen to music when doing their homework may be, in fact, working hard.

Thirty three schools have downloaded specially written pop and rock songs for their 10,000 pupils who are studying for GCSE (初级毕业证书). The professionally recorded music, based on texts in English literature, teaches teenagers about themes in the GCSE curriculum (课程). Two young men set up “Revise”, the company that produced the songs, and worked with teachers to make sure the lyrics (歌词) reflected the curriculum. Some of the songs were written by Geraint Brown, a director, and they are performed by professional singers and musicians.

Songs for the GCSE science and maths lessons are also being developed in 36 schools. They have also started using the program, called, “LearnThruMusic”.

Dave Matthews, the head of Hawthorn High School in the South Wales valleys, said the program aimed at helping teenagers who are unwilling to study. He said, “There are lots of pupils who don’t have a high level of home support. It’s almost cool to say you have no need to find a support and we have got to change that. With this, they don’t have to be sitting at their desk at home. They can be outside, walking around or even listening to it on the bus, which is very convenient for them.” Everyone has a phone, MP3 or CD player, and they’re more likely to listen to these than pick up a book. “I think everyone would agree that music had an important influence on us when growing up. Both boys and girls are very good at remembering the words and dancing to the music in the charts. There’s no one thing that will successfully engage (使…产生兴趣) every child, and some of them will make little or no use of this. But the fact that they don’t have to do any extra work makes this a very good deal for a kid,” Dave Matthews added.

小题1:The pop and rock songs used in 36 schools ________.

A．were written for the students to relax themselves

B．made most parents and teachers angry

C．were specially written for hardworking students

D．were closely related to the curriculum小题2:Which benefit of the program is NOT mentioned in the passage?

A．It saves students much extra work.

B．It offers different ways of learning.

C．It makes remembering easier.

D．It improves family support to kids.小题3:Which of the following can be inferred in the passage?

A．The program is not expected to have equal effect on every student.

B．Some students used the song as an excuse for not reading textbooks.

C．It’s more difficult to create songs for science and maths lessons.

D．Students involved in the program needn’t go to school every day.小题4:Which of the following might be the best title for the passage?

A．Special-written Songs — A Reason Why Students Should Listen to IPods.

B．Special-written Songs — A New Way to Learn the Curriculum.

C．Special-written Songs — A Substitution for Textbooks.

D．Special-written Songs — Mothers’ New Concern.

经初步核算，2009年上半年我国国内生产总值同比增长7.1%，比一季度加快1.0个百分点。其中，第一产业增加值12025亿元，增长3.8%，第二产业增加值70070亿元，增长6.6%，第三产业增加值57767亿元，增长8.3%。上半年，全社会固定资产投资91321亿元，同比增长33.5%，增速比上年同期加快7.2个百分点。其中，城镇固定资产投资78098亿元，增长33.6%，加快6.8个百分点；农村固定资产投资13223亿元，增长32.7%，加快9.5个百分点，上半年，社会消费品零售总额58711亿元，同比增长15.0%。其中，城市消费品零售额39833亿元，增长14.4%，县及县以下消费品零售额18878亿美元，增长16.4%，上半年，进出口总额9461亿美元，同比下降23.5%。其中，出口5215亿美元；进口4246亿美元，贸易顺差同比减少21亿美元，上半年，城镇居民家庭人均总收入9667元，其中，人均可支配收入8856元同比增长9.8%，在城镇居民家庭人均总收入中，工资性收入6394元，增长11.1%；转移性收入2273元，增长16.0%；经营净收入778元，增长3.9%；财产性收入222元，增长9.1%。农村居民人均现金收入2733元，增长8.1%，其中，工资性收入954元，增长8.4%；家庭经营收入1512元，增长5.5%，财产性收入78元，增长9.9%；转移性收入189元，增长31.4%。

2008年上半年，全社会固定资产投资同比增长( )。

A．40.7%

B．33.5%

C．26.3%

D．24.2%

美洲的土著居民是[ ]

A．黑人

B．印第安人

C．英国移民

D．哥伦布船队的成员

精萘洗涤过程要求酸油分离时间为（）小时，碱油分离时间为（）小时。