国家开放大学理工英语3形考作业四高分参考答案

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国家开放大学理工英语3形考作业四阅读理解

The fridge is considered necessary. It has been so since the 1960s when packaged food list appeared with the label: “Store in the refrigerator.”

In my fridgeless Fifties childhood, 1 was fed well and healthy. The milkman came every day, the grocer, the butcher (肉商), the baker, and the ice-cream man delivered two or three times each week. The Sunday meat would last until Wednesday and surplus(剩余的) bread and milk became all kinds of cakes. Nothing was wasted, and we were never troubled by rotten food. Thirty years on food deliveries have ceased, fresh vegetables are almost unobtainable in the country.

The invention of the fridge contributed comparatively little to the art of food preservation. Many well-tried techniques already existed — natural cooling, drying, smoking, salting, sugaring, bottling…

What refrigeration did promote was marketing — marketing hardware and electricity, marketing soft drinks, marketing dead bodies of animals around the world in search of a good price.

Consequently, most of the world’s fridges are to be found, not in the tropics where they might prove useful, but in the rich countries with mild temperatures where they are climatically almost unnecessary. Every winter, millions of fridges hum away continuously, and at vast expense, busily maintaining an artificially-cooled space inside an artificially-heated house — while outside, nature provides the desired temperature free of charge.

The fridge’s effect upon the environment has been evident, while its contribution to human happiness has been not important.

1. The statement “In my fridgeless fifties childhood, I was fed well and healthily.” suggests that the author was well-fed and healthy even without a fridge in his fifties.  {T; F}

2. The author says that nothing was wasted before the invention of fridges because people had effective ways to preserve food.  {T; F}

3. Consumers benefited the most from fridges according to the author?  {T; F}

4. What refrigeration did promote was food-preserving. {T; F}

5. The author is critical to fridges.  {T; F}”

答案：子问题 1：F; 子问题 2：T; 子问题 3：F; 子问题 4：F; 子问题 5：T

国家开放大学理工英语3形考作业四听力题

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1. They are talking about a camera.  {T; F}

2. You can find a mobile phone in any of latest MP4.  {T; F}

3. The new cell phone is just like a pad.  {T; F}

4. Digital devices are becoming bigger and harder to carry.  {T; F}

5. The cell phone generally has memories of over 512 MB.  {T; F}

答案：子问题 1：F; 子问题 2：F; 子问题 3：T; 子问题 4：F; 子问题 5：T

国家开放大学理工英语3形考作业四阅读理解

An e-book(also referred to as an electronic book，e-book，or e-book)is a digital version of a print book that you download and read. But if you want to read an e-book, you must have an E-book Reader, which is a kind of free software used by your computer. Make sure you have installed the appropriate Reader before you download your e-book from the Internet. The software allows you to turn the words on the screen into the size you like. It also helps you turn pages and change your viewing options. E-books are a fun alternative to regular books. You can download them to any computers and create your own library of hundreds of titles. If you load them onto your portable computer，you can take them with you when you travel. Some e-books are even interactive! Best of all，when you order an e-book，there is no waiting and no shipping charges. The amount of time it takes to download your e-book depends on the speed of your connection and the size of your e-book.

1. From this passage,we learn that an e-book {A; B; C; D}.

A. can be found in any library

B. can be read directly from the Internet

C. can be read by any one who has a computer

D. can be read when special software is installed

2. The E-book Reader is used for {A; B; C; D}.

A. reading an e-book you’ve downloaded

B. turning a print book into a digital version

C. downloading an e-book from the Internet

D. copying an e-book onto a portable computer

3. From this passage,we can learn that {A; B; C; D}.

A. you can read an e-book on a laptop when you travel

B. you can order an e-book using the E-book Reader

C. the e-books ordered have to be shipped to you

D. it takes a lot of trouble reading an e-book

4. Which of the following statements is TRUE? {A; B; C; D}

A. An e-book is ordered in print book.

B. The size of the words in an e-book cannot be changed.

C. The downloading time is decided by the e-book’s size.

D. There is less fun reading an e-book than a print book.

5. The passage is mainly about {A; B; C; D}.

A. a better way to download an E-book

B. a new kind of book—the E-books

C. the new version of E-books

D. the fun of reading E-books “

答案：子问题 1：D; 子问题 2：A; 子问题 3：A; 子问题 4：C; 子问题 5：B