泪道不包括 A．泪腺 B．泪小管 C．泪囊 D．鼻泪管 E．泪总管

（7分）厨房中的化学知识真不少。

（1）经常吃些粗粮有助于人体健康。下表是玉米中的主要营养成分：

玉米中，能为人体提供能量的有油脂、蛋白质和  　　　 。营养均衡很重要，幼儿及青少年摄入钙不足，可能会引起 　　　 （填序号，下同）。

a．佝偻病及发育不良    b．贫血    c．夜盲症    d．甲状腺肿大

（2）某些食物的近似pH如下。

柠檬汁：2.4、苹果：3.1、泡菜：3.4、葡萄：4.2、番茄：4.4、牛奶：6.5、玉米粥：7.8。

胃酸过多时应少食泡菜的说法 　　 （填“正确”或“不正确”）。               

（3）天然气是主要的家用燃气。天然气的主要成分是      。如家里的天然气泄漏应采取的应急措施是      。

（4）了解厨房中一些常见物质的性质和用途。

① 山药的黏液中含有一种碱性的物质—皂角素，皮肤沾上它会奇痒难忍。你认为可涂抹下列物质中的 　　 来止痒。

a．食醋            b．石灰水         c．肥皂水       d．柠檬汁

② 下列物品中，由有机合成材料制成的是 　　　　　　 。

a．合成橡胶手套    b．塑料保鲜膜     c．棉布围裙     d．不锈钢炊具 

军事专家指出，航空母舰是一个复杂的作战系统。作为大型水面舰艇，交付科研、试验、训练使用后，不仅舰上各类装置、电子系统、武器系统等需要调试，军舰内部各个系统之间需要磨合，与编队中其他舰艇的协同需要训练，舰载机飞行员训练、舰机协同等都需要较长时间完成。可见 

①要用综合的思维方式来认识事物　      ②对新事物要有足够的耐心促进其成长　

③要有实事求是的精神，按规律办事　    ④要做好量变的准备，等待质变的自然发生

A．①②③

B．①②④

C．①③④

D．②③④

Traffic TV

Avoid the jams — see where tailbacks are before you set off and while on the move. Traffic TV is free to use on your personal computer and only £4 per month (see below for other network charges) on your mobile.

How does it work?

Over 7,500 Trafficmaster cameras monitor traffic flow on over 8,000 miles of motorways and roads across the UK, keeping you up to date 24 hours a day, 7 days a week.

Traffic TV on your mobile

This downloadable application lets you see where jams are building up, the speed of vehicles at hotspots, and live pictures from thousands of roadside cameras.

Traffic TV is £4 a month for Orange mobile customers, after a 30 day free try-out. On other networks Traffic TV is £5 a month, after a 7 day free try-out.

Listen to live traffic news

Don’t want the download? Then simply dial the numbers below from your mobile to hear the latest traffic updates.

＊Orange mobile users call 177 (calls cost up to 55p a minute)

＊Other mobile users call 1740 (calls cost up to 59p a minute)

Help friends avoid jams

Simply enter your friend’s email address to send them a link to this service.

小题1:How can users get live traffic information?

A．By mobile phone or through Internet.

B．By watching a TV programme.

C．By listening to the radio report.

D．By using Trafficmaster cameras.小题2:How long may a customer use the service if his/her network is Orange and he/she pays £20?

A．About 120 days.

B．About 127 days.

C．Five months.

D．Six months.小题3: What is the purpose of this advertisement?

A．To provide readers with live traffic information.

B．To help Orange customers to avoid traffic jam.

C．To attract mobile users to buy Traffic TV service.

D．To explain how Traffic TV and live traffic news work.小题4:You may read this advertisement most probably ___________.

A．in a travel guide

B．on a web page

C．on a road sign

D．in a newspaper

What is there in the shop
[A] Fish.[B] Meat.[C] Beef.

人支配自己的音调发生的高低变化的能力范围，在艺术发声中称为？（）

A.音质

B.音源

C.音域

D.音感