根据所给的中文和括号内的语法提示, 把下面句子翻译成英语,写在答题卷相应的横线上。
【小题1】 我觉得很奇怪他睡得那么少却能够干得那么卖力。（宾语从句）
I find ______ ________ ______ he is able to work so hard with so little sleep.
【小题2】 这两姐妹一定是吵架了，因为她们互不理睬。(must have done)
The sisters _______ _______ _______ an argument, for they are no longer talking to each other.
【小题3】 那位老师和两个学生参加了会议。（主谓一致）
The ________ with two ________ ________ at the meeting.
【小题4】 是什么事使他不能参加我们的会议仍然是个谜。（主语从句）
_______ prevented him from _______ our meeting still ______ a mystery.
【小题5】老师不用抬头看就已经知道是哪个学生在班上讲话。（V+ing 作宾语）
Without ______ ______ _______ her desk, the teacher already knew which student was talking in class.  

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.

1.What does the course Basic Math mainly cover?

2. What good things can students expect from Basic Math?

3.What can we learn about Professor H. Siegel?

4.Where is the passage most likely to have been taken from?　　

根据所给的中文和括号内的语法提示, 把下面句子翻译成英语,写在答题卷相应的横线上。

1. 我觉得很奇怪他睡得那么少却能够干得那么卖力。（宾语从句）

I find ______ ________ ______ he is able to work so hard with so little sleep.

2. 这两姐妹一定是吵架了，因为她们互不理睬。(must have done)

The sisters _______ _______ _______ an argument, for they are no longer talking to each other.

3. 那位老师和两个学生参加了会议。（主谓一致）

The ________ with two ________ ________ at the meeting.

4. 是什么事使他不能参加我们的会议仍然是个谜。（主语从句）

_______ prevented him from _______ our meeting still ______ a mystery.

5.老师不用抬头看就已经知道是哪个学生在班上讲话。（V+ing 作宾语）

Without ______ ______ _______ her desk, the teacher already knew which student was talking in class.  

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?