某车间计划30天完成1200个零件的加工任务，实际前8天就加工了40%，照这样计

2005年4月20日“食品包装材料中国安全环保认证”新闻发布会在北京举行．人们进一步认识到包装在对食品提供保护，防止食品受外界微生物或其它物质的污染，防止或减少食品氧化和其它反应方面有着不可替代的作用

(图1)

(图2)

(图3)

(1)生活中我们常见的一些食品包装材料有塑料、易拉罐、　_________等．（写一种即可）

(2)用于食品包装的材料必须有适当的阻隔性．不同的食品对其包装材料有不同的要求，如 油脂食品要求高阻氧性和阻油性；芳香食品要求高阻异味性；干燥食品要求　_________　；而果品、菜类、鲜活食品又要求包装有一定的　_________　、二氧化碳和水蒸气的透过性；最重要的一点是　_________　，确保食品的安全．

(3)食品卫生与身体健康密切相关．下列做法中食品对人体没有害的是 _________

      A．用石灰水保存鲜蛋

      B．为保持肉制品鲜美，在香肠中添加过量的亚硝酸钠

      C．为让猪长得瘦，用瘦肉精（一种含激素的饲料）饲养生猪

      D．蒸馒头时加入适量碳酸钠或碳酸氢钠

(4)易拉饮料罐是用很薄的铝片制成的，在空罐中注入少量水，用酒精灯加热到沸腾，待大量水蒸气逸出后，先移去酒精灯，再用厚胶纸把罐口密封住，待自然冷却后，会发生现象是_________

     （A）罐外壁出现小水滴                                       （B）罐变瘪了

     （C）罐爆裂了                                                       （D）罐变瘪了，且罐外壁出现小水滴

(5)某学生对铝的化学性质进行控究，实验情况如上图1：

   [提出问题]从上述实验现象中，你发现了什么问题？_________；

   [猜想]针对你发现的问题，分析其原因，大胆提出你的一个猜想：_________．

   [设计方案]根据你的猜想，任选不列实验用品，进行实验设计．实验用品：10%的稀硫酸、30%的稀硫酸、相同大小的铝片（若干）、氯化钠、试管、试管夹、酒精灯、镊子、药匙、砂纸.        请为图2填空  

(6)某校综合实践活动小组进行“诚信食品”研究，分析标签所列成分含量与实际是否相符，图3是某厂生产的味精包装上的部分说明，某同学取5g味精，溶于水后加入足量AgNO₃溶液，再滴加适量稀HNO₃（防止某些杂质的干扰），经过滤、洗涤、干燥得到白色沉淀2.87g，（化学方程式为：NaCl+AgNO₃═AgCl↓+NaNO₃）试通过计算确定：该味精是否可列入“诚信食品”名单？

下列各句中，没有语病的一组是（  ）

A．专家认为，如果全国实行统一的药品编码，就可以建立药品信息系统及用计算机对种类繁多的药品进行科学管理打下坚实基础。

B．中国企业500强榜单日前发布，中石化连续八年蝉联榜首，国字号的垄断企业和银行包揽前十，而民营及民营控股企业无缘前十。

C．尽管中国奶业屡陷信任危机，但在越来越多的消费者重视奶制品给自己带来好处的情况下，市场需求仍旧呈现扩大趋势。

D．睡姿不当会导致视力受损，有时还会引发多种疾病，特别是趴着睡觉会造成眼压过高，不仅可能诱发青光眼，严重的还会影响视力。

Islands of Adventure at Universal Orlando in Florida

People say that it is the home of the “Harry Potter Theme Park”. The Wizarding World is the most popular part of the park. Other popular rides include the Adventures of Spider-Man, Popeye & Bluto’s Bilge-Rat Barges and the Jurassic Park River Adventure.

It is open from Monday to Saturday. $15.95 for children, 3 to 13 years old; $29.95 for ages 14 and over.

PI-O Indoor Theme Park in Longueuil

The PI-O Indoor Theme Park features(以……为特色) 16 rides, a small sea train, a kid-sized bowling alley(保龄球场), a mirror maze(迷宫), theme rooms which include the Christmas room on-the-sea, and a private reception room.

“I wanted to create a safe environment for kids aged 1 to 10,” explains owner Jocelyne Pinard. She noted how many competing amusement parks have sections that can be unsafe for young kids — such as the “ball rooms” full of loose plastic balls. So this is how it is different from other amusement parks.

Open seven days a week. The admission fees are $16.99 for individuals(个人) and $64 for families.

Legoland Windsor Theme Park in London

Legoland Windsor is the best choice for young families. The park is designed for children from 3 to 12. There are over 50 rides as well as live shows, workshops, and other attractions aimed at younger children, and especially those who are already fond of building-block(积木) toys.

The park is open every single day. Adults: $35; Ages 3-15 and 60+: $26. Buy online and save $3 per person.

Wonder La Theme Park in India

Wonder La is a world-class amusement park. It’s modern, clean and green, and has all kinds of attractions. There are over 50 rides, 12 of which are water based and 9 especially for small children. If you love getting wet, don’t miss the Rain Disco — an indoor dance floor with a rain system that provides showers of warm water to the music.

Monday to Friday 11 a.m. until 6 p.m. Saturday, Sunday, Holiday and Festival seasons 11 a.m. until 7 p.m. Single adult / child — $13.50; Family ticket (for any four people) — $50.00; Children 3 and under — Free.

小题1:If Jim is free this Sunday, he can choose to visit the following parks EXCEPT________.

A．Islands of Adventure

B．PI-O

C．Legoland Windsor

D．Wonder La小题2:How is PI-O Indoor Theme Park mainly different from other parks?

A．It is much safer.

B．It features more rides.

C．It is much cheaper.

D．It offers more activities.小题3:If a couple want to visit Legoland Windsor Theme Park with their 5-year-old son, how much do they need to pay when booking online?

A．$70.

B．$87.

C．$93.

D．$96.小题4:Which of the following about Wonder La Theme Park is NOT true?

A．It is located in India.

B．It is free for children of 3 and under.

C．There are nine rides especially for small children.

D．The Rain Disco lets children enjoy cool showers while dancing.小题5:Where is the passage most probably taken?

A．A science magazine.

B．A text book.

C．A travel guide.

D．A local newspaper.

批量对公付款业务中交易的撤销：对未上传CCBS或上传CCBS失败的付款，应客户要求且经业务主管同意后可撤销业务；CCBS已开始批处理的，不可做撤销处理。（）

（）由左、右二腹肌前腹与舌骨体围成。

A.下颌下三角

B.颏下三角

C.颈动脉三角

D.枕三角

E.椎动脉三角