E In the UK, most children have their midday meal at school, but in many schools, parents can choose what their children eat. The children can have a school lunch—a hot, cooked meal; or they can take a packed lunch with them, which usually includes cold food like sandwiches. Often parents prepare lunches on the basis of what their children want. Cathy, a mother of three children, told us, “My children have packed lunches, because they say they hate school dinners. I make 3 packed lunches every morning, so we’re like a sandwich bar in our kitchen in the morning.” However, another mother, Susan, made her choice based on the nutritious value of the food. She said, “My daughter always has school dinners. I think she probably gets healthier food by having a cooked lunch at school than she would if I made sandwiches.” But how healthy are school dinners？ Kaz, a father, wasn’t impressed with them. “Fizzy （有泡沫的) drinks were offered and I think there were a lot of chips.” The question of how healthy school food is was brought to Jamie Oliver, who launched a campaign to improve children’s nutrition, after spending a year working in a school kitchen. The TV series about the campaign won an award this week. He was horrified （惊恐的) at the junk food he saw being served, which included burgers, pizza and chips.  He decided to ban the junk, and started cooking good stews （炖菜) and curries for the children instead. Jamie improved the school dinners in that particular school, and trained the dinner ladies to cook healthy food. Then he put pressure on the government to improve the standards of school food across the country. And it looks as if the changes have begun. 57 What would be the best title for the passage？ A. School Dinners      B. Healthy Food C. Dinners in the UK     D. Research on Dinners

The underlined phrase “on the basis of” in the second paragraph probably means “______”.

A. by comparison      B. according to C. in spite of        D. for the good of 59 We can learn from the passage that ______. A. in Britain, all children have their lunch at school  B. Cathy’s children like school dinners C. stews and curries are healthy food D. Jamie Oliver works in a school kitchen

Which of the following can be inferred from the passage？

A. There are many schools in Britain. B. Susan chooses food for her daughter according to its nutrition. C. In the past, the food provided by British schools was not healthy enough. D. None of the parents in Britain like school food.

某实验室通过手术获得下丘脑部分损毁却能存活的大鼠，进行了相关研究。实验：按下表准备两组实验大鼠并作如下处理：向大鼠皮下注入等量的SRBC（山羊红细胞)；7天后，取脾脏组织制成细胞悬液；将适量脾细胞悬液与SRBC混合培养一段时间，然后检测SRBC破裂情况（注：特异性抗体与红细胞表面的抗原结合后，红细胞会破裂，释放血红蛋白。培养液中血红蛋白的含量越高，OD值越大)。

（1)向大鼠皮下注入SRBC的目的是_______。（2)脾细胞悬液会引起SRBC破裂，说明悬液中含有___\_物质，产生该物质的细胞称为_______。（3)有人认为该实验还应增设一组：做手术却不损毁下丘脑，你认为有必要吗？__\__，请说明理由_____。（4)请为此实验拟定一个题目_________。

关于甲型H1N1流感病毒与H5N1禽流感病毒的有关比较，正确的是

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A．均使感染者发烧，因此两者抗原相同B．感染不同的人后所引起的患病程度可能不同C．感染正常人体后均能引发特异性免疫反应D．均可能发生基因突变而改变传染性

Mike Maietta was eating lunch when he got a text message from his mom. “Notre Dame,” it said. “Big envelope!” Mike, a senior at a Californian high school, shouted with joy. The big envelope meant that the excellent university in Indiana had offered him a place in its Class of 2013. But the $51,300 annual fee is a big obstacle. So Mike and his parents are considering offers from several other colleges and are calculating the costs of tuition, housing and holiday trips home. This year, money is the driving factor for a growing number of high school seniors, who have to decide what colleges to attend this fall. Less jobs and plunging house prices have changed family spending. “We’re excited that Mike got into eight great schools,” said Mike’s father, an engineer at Microsoft. “But if you consider going to school out of state, you’ve got to think about all of the other costs: moving, flying back and forth for the holidays. You’re looking at about $3,000 a year, just for travel.” As families weigh their choices, some are going back to financial aid offices hoping help packages can be increased. Rachel Brown was happy to get a thick envelope from New York University （NYU). Although she has always wanted to live in Manhattan, she is seriously considering the University of California San Diego （UCSD), because of the high cost in New York. “The tuition for NYU is twice as much as UCSD,” said Rachel, 17. “My mom doesn’t want me to have a big debt when I graduate, and I don’t want that either. I’d have to take out a loan of $15,000. I’ll check and see if there’s any way that NYU can offer me any financial aid.” More than 7.6 million American students have filled out the Free Application for Students Aid, a 19.9 percent increase over last year. This month the Federal Department of Education urged college financial aid officers to give more help to certain families. A record 30,428 students applied for 2,300 places at Stanford, partly because the university increased financial aid for families earning below $10,000.

A. travel fees                              B. financial concerns C. poor exam results                       D. worries about living far away from home

A. A text message                          B. A large gift package C. An admission letter                      D. A scholarship letter

A. The number of American senior students applying for financial aid is increasing. B. Rachel Brown has given up NYU because of its high tuition and big debts. C. It is inevitably hard for college students to borrow money to cover costs. D. An interest-free loan for students helps more students apply for Stanford.       

A. the calculation of different costs including tuition B. the extremely hard financial situation in America C. the excitement of students’ being able to enter ideal colleges D. the financial crisis of families over college entrance

为防止甲型H1N1病毒在人群中的传播，有人建议接种人流感疫苗，接种人流感疫苗能够预防甲型H1N1流感的条件之一是：甲型H1N1病毒和人流感病毒具有相同的

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A．侵染部位B．致病机理C．抗原决定簇D．传播途径

读“我国某生态环境问题分布统计图”，完成问题。小题1:该生态环境问题是（ ）

A．土地荒漠化

B．水土流失

C．酸雨

D．生物多样性减少小题2:为了避免该生态环境问题在我国西北地区愈演愈烈，下列做法可取的是（ ）

A．大面积植树造林，减少水土流失

B．解决当地群众生活用能问题，严禁乱砍滥伐

C．加快城市化进程，提高人们的生活水平

D．引水灌溉，大力发展农业生产