问题 阅读理解

阅读理解。

     The iPad is an Apple tablet computer. The device sits somewhere between a laptop and a

smart phone, according to Apple's chief executive, Steven P. Jobs, and does certain things better

than both of them, like surfing the Web, reading e-books and playing videos. The iPad went on

sale on April 3, 2010, and Apple said it had shipped 500,000 units in the first week. The handheld

device puts Apple on a direct collision course with the Kindle from Amazon, which Mr. Jobs ever

considered as pioneering the category.

     It is common knowledge that media companies hope the iPad will finally lead to available way

for them to charge for news, books and other materials. The half-inch thick, 1.5-pound device

features a 9.7-inch multi-touch screen and is powered by a customized(订制的)Apple microchip,

which is called A4. It has been designed with an exposed screen and without a camera or separate

keyboard. The iPad has the same operating system as the iPhone and also has access to its 140,000

applications.

     The price of the device starts at $499 for the most basic model, with a Wi-Fi wireless connection.

More expensive models with more memory and with 3G wireless access will cost $629 to $829,

depending on storage size.

     Because Apple is attempting to popularize a new kind of computing device, acceptance among

consumers is expected to be slower than with previous Apple devices. Critics assume that some

buyers are waiting for future versions of the iPad to appear, perhaps with a camera or USB ports

(端口).

     On its first day on sale, iPad users downloaded more than one million applications from the

company's AppStore and more than 250,000 electronic books from its iBookstore. A new wave

of apps is expected in response to the iPad. For an application developer, having an application

accepted for a highly desired Apple product means reaching a passionate group of consumers.

The potential income is huge: the apps market for the iPhone and iPod Touch alone is already

worth a billion dollars a year in sales.

1. In Mr Job's opinion, the iPad              .

A. is a standard computer

B. is better than a laptop in any function

C. helps Apple to beat Amazon

D. is a "revolutionary" product between a laptop and a smart phone

2. Which of the following is NOT true of the iPad?

A. It is expected to benefit media companies.  

B. It has a lot of similar features to a laptop.

C. It has a virtual keyboard.                

D. It has the fastest Apple microchip.

3. The different prices of the iPad are determined by              .

A. the size of the screen

B. the size of the memory

C. the speed of the microchip

D. the Wi-Fi wireless connection

4. What do we know from the fourth paragraph?

A. Some consumers hope for an iPad with more functions.

B. Buyers can improve their iPads with USB devices.

C. The iPad is basically different from conventional computers.

D. The iPad is accepted faster than former Apple products.

5. It is implied in the passage that              .

A. people may download any application from the App Store

B. people would prefer to buy an iPad rather than an iPhone

C. owning an Apple product means that you will be respected

D. the Apple company will make more profit from the iPad

答案

1-5: DDBAD

阅读理解与欣赏

古怪的重水

叶永烈  

①1942年,正当第二次世界大战在欧洲大陆激烈进行的时候,英国的间谍部门却把注意力集中于挪威南部某荒凉小镇的一家看起来很普通的小工厂。这家小工厂里,并没有隆隆的机器声,也没有高高的烟囱。只有来自当地水力发电厂的电线和自来水管。它在静悄悄地生产着一种神秘的重要物资。 德国军队重兵防守,但这家小工厂还是被英国间谍炸掉了。德国人马上调集专家抢修,花了9个月的时间,小工厂又开始了神秘的生产。1944年,德国军队极为秘密地把小工厂的产品运走。 但那产品最终还是先后被英国间谍的定时炸弹和美国的轰炸机炸毁了。

②这家小工厂生产的究竟是什么产品呢?这神秘的产品,就是重水!

③重水看上去跟普通的水差不多,也是无色透明的液体。然而,它似水不是水,跟普通水有着许多不同的“脾气”。重水确实是“重”水,它比普通水重。1立方米重水要比1立方米普通水重105.6公斤。重水这名字,便是打这儿来的。普通的水在0℃结冰,在100℃沸腾。然而,重水却在3.8℃结冰,在101.42℃沸腾。普通水的密度在4℃时最大,重水的密度在11.6℃时最大。很多物质在重水中的溶解度,比在普通水中小。比如,食盐在重水中的溶解度,比在普通水中减少15%,氯化钡的溶解度则减少20%。许多化学反应在重水中进行,比在普通水中慢。严格地说,重水也是水!普通的水分子是由1个氧原子和2个氢原子组成的。重水的分子,也是由1个氧原子和2个氢原子组成的——只不过这氢原子不是普通的氢原子,而是重氢原子。

④在大自然中,普通水很多,然而重水却很少,在50吨水里大约只含有7.5公斤重水。重水总是混杂在普通水中,均匀地混合在一起。怎样才能把重水分离出来呢?人们发现,当用电流电解水的时候,普通的水大量被电解成氧气和氢气,而在剩下的液体中,重水的含量越来越多。于是,人们便请电流帮忙,来提取重水:把水大批大批地电解,然后把剩下的液体进行蒸馏,利用重水和普通水沸点的不同把它们分开,制得很纯净的重水。从天然水中提取重水,要消耗大量的电能。据统计,提炼一公斤重水比熔炼1吨铝所需要的电能还多3倍。(选自《百年百篇经典科普》,有删改)

小题1:本文开头写英国间谍对一家小工厂的破坏有什么作用?(2分)

小题2:根据说明文的语言特点,体会下列句子中加点词语的表达效果(2分)

然而,它似水不是水,跟普通水有着许多不同的“脾气”。

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