Basic Math introduces students to the basic things of mathematics, as well as some easy methods of learning it. These 30 fantastic courses are designed to provide students with understanding of arithmetic and to prepare them for Algebra (代数) and beyond.
　　The lessons in Basic Math cover every basic field of arithmetic. They also look into exponents (指数), the order of operations, and square roots. In addition to that, students also discover how a particular mathematical topic relates to other branches , and how they can be used practically.
　　Basic Math starts from easier concepts and gradually moves on to the more troublesome ones.  The lectures offer students the chance to understand of mathematical knowledge that may have seemed so frightening. They also help students prepare for college mathematics and develop confidence in this amazing field of study.
　　With the help of these lectures, they will be able to clear away the mystery (神秘性) of mathematics and face their studies with more confidence than they ever imagined. Besides, they will strengthen their ability to accept new and exciting mathematical challenges.
　　Professor H. Siegel, honored by Kentucky Educational Television as "the best math teacher in America, " is a devoted teacher and has a gift for explaining mathematical concepts in clear and interesting ways. From the basic ideas to the more difficult problems, he is a master in making math lectures learner-friendlier and less frightening
　　With a PhD in Mathematics Education form Georgia State University, Dr. Siegel now teaches mathematics at Central Arizona College.
　　If the course fails to provide complete satisfaction to you, you can easily exchange it for any other course that we offer. Or you can get your money back.
【小题1】What does the course Basic Math mainly cover?

A．Algebra	B．College Mathematics
C．Arithmetic	D．Mathematics Education

【小题2】 What good things can students expect from Basic Math?

A．Stronger imagination ability.

B．Additional presentation skills.

C．More mathematical confidence.

D．Greater chances of becoming teachers.

【小题3】What can we learn about Professor H. Siegel?

A．He is a lecturer at Kentucky Educational Television.

B．He is delivering 30 lectures in Basic Math.

C．He works in Georgia State University.

D．He specializes in training teachers.

【小题4】Where is the passage most likely to have been taken from?　　

A．news report	B．A book review
C．A lesson plan	D．An advertisement

　　Rats eat our food or make it so dirty that it isn't fit for people at all. That's why people often kill them by laying down poison. After a day or two, they find the poison still there. The rats haven't touched it, even though it is near the food which they eat. People think they must be clever and cunning. Some scientists have been trying to find the best way to poison rats. They have watched to see just what a rat does day and night. They have found out that rats aren't so clever. They are just very shy.

　　Rats usually live in holes. They run from these holes to the places where they eat and drink. They have special paths on which they travel each time. So they know their paths quite well.

　　If anything new, such as stone or wood, is put in the path, the rats won't go near it at first as they are too frightened. It will take them many days to get over the fear. They are also frightened to go near a place that they know, where something has been taken away. If a path goes around a rock, the rats follow the same path around the rock each time. If the rock is taken away, they will still run round the place where the rock was! They won't cross the empty place, which is now open to them, even though it would be quicker.

　　Rats will always keep away from anything unusual to them. That's why they won't eat poison on the first or second night. They usually won't go anywhere near it for about four days until they get used to being there. Even then they only eat a little at a time.

　　If people want to kill rats with poison, all they have to do is to leave it out for a few days. Once the rats have got used to it, they will eat it and die.

　　1．This passage mainly tells us

　　　　A. how a rat destroys our food

　　　　B. how to poison a rat

　　　　C. what's a rat's habit

　　　　D. poisoning a rat is not easy

　　

　　2．How does the writer feel about rats?

　　　　A. They are clever and cunning.

　　　　B. They are the most dangerous enemy.

　　　　C. They are smart and shy.

　　　　D. It's easy for them to get close to an unknown object.

　　

　　3．________ rats have special paths to travel each time.

　　　　A. Because they live in holes most of the time

　　　　B. To find more food to eat and water to drink

　　　　C. In order not to eat anything poisonous

　　　　D. To protect themselves

　　

　　4．If you want to kill a rat, ________.

　　　　A. you should make it get used to the poison

　　　　B. you should drive it out of the hole

　　　　C. you should place a rock on the path along which it runs

　　　　D. you should make it get over the fear to cross the empty place