Power ________ in our area is often the case, so you’d better prepare some candles in case．

1. A.
   loss
2. B.
   failure
3. C.
   absence
4. D.
   drop

Word Power

Author(s): Kaplan  $13.95

You’ll never be at a loss for words again. Energize your vocabulary with must-know everyday words that are the essentials of a good vocabulary, engaging lessons to help you use words in text, hot words often found on tests, tips to help you figure out new words, roots, and more.

Grades: 8 & up  Ages: 13 & up 

Word Smart Junior

Author(s): Russell Stauffer  $ 17.95

Now this is the way to add new words to your vocabulary! Word Smart Junior will make you laugh so much. You’ll be amazed that you’ve just learned more than 120 fascinating and very useful words! Parents, teachers, and friends will marvel at your eloquence (口才)!

Grades: 3-5  Ages: 8-10

Grammar Smart Junior

Author(s): Marcia Reynolds  $ 16.85

Do you quake when your teacher says, “Now it’s time for grammar”? Do your verbs agree with your subjects?

Fear no more! A big Hollywood producer and a famous movie star will help you learn all those nasty (讨厌的) elements of grammar. You’ll be amazed at how quickly you learn, and how much fun it can be. You’ll finally know your grammar backwards and forwards, and you’ll never have to worry about it again.

Grades: 7-9 Ages: 12-14

Grammar Smart: An Audio Guide to Perfect Usage

Author(s): Julian Fleisher    $ 12.68

The words you use say a lot about you … but the way you put them together says even more. Your grammar makes an immediate and lasting impression on your teachers, and even your friends. So don’t make the mistake of thinking that grammar is too complicated. We’ve created Grammar Smart to help you write and speak with clarity and confidence.

Grades: 6-8  Ages: 11-13 

If a ten-year-old boy wants himself to be admired because of his speech ability, he may buy _______.

A. Word Power

B. Word Smart Junior

C. Grammar Smart Junior

D. Grammar Smart: An Audio Guide to Perfect Usage

By saying “You’ll finally know your grammar backwards and forwards”, the writer means “________”.

A. You will be clearly familiar with grammar

B. You will know the history of grammar

C. You will know the make-up of grammar

D. You will learn about the future of grammar

The four books are all about _______.

A. fiction and mysteries   B. parenting and teaching   C. literature and arts D. language study

Nuclear power's danger to health, safety, and even life itself can be described in one word; radiation(辐射).

    Nuclear radiation has a certain mystery about it, partly because it cannot be detected (探测) by human senses. It can't be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around us but we can't detect them, sense them, without a radio receiver. Similarly, we can't sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things.

    At very high levels, radiation can kill an animal or human being completely by killing masses of cells in important organs (器官). But even the lowest levels can do serious damage. There is no level of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be significant. This is the case when only a few cells are hit, and if they are killed completely. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in an unusual way. They can grow into cancer. Sometimes this does not show up for many years.

This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the knowledge of the person at the time that damage has occurred. A person can be irradiated(放射治疗) and feel fine, then die of cancer five, ten, or twenty years later as a result. Or a child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents.

     Radiation can hurt us. We must know the truth.

According to the passage, the danger of nuclear power lies in __________.

A. nuclear mystery              B. radiation detection

C. radiation level                 D. nuclear radiation

Radiation can lead to serious results even at the lowest level ________.

A. when it kills few cells             B. if it damages few cells

C. though the damaged cells can repair themselves

D. unless the damaged cells can reproduce themselves

Radiation can hurt us in the way that it can _____.

A. kill large numbers of cells in main organs so as to cause death immediately

B. damage cells which may grow into cancer years later

C. affect the healthy growth of our younger generation

D. lead to all of the above results

Which of the following can be best inferred from the passage?

A. The importance of protection from radiation can be overemphasized (过分强调).

B. The mystery about radiation remains unsolved.

C. Cancer is mainly caused by radiation.

D. Radiation can hurt those who do not know about its danger.