American schools are quite different from those in China. In America, at the beginning of the term, students must select their courses and teachers first. While in China students usually have no chances to select their courses and teachers.

Selecting is very important for your grades in America. So at the first term, don’t select too many courses, 74.or you’ll feel very nervous and it may influence your study. Then you have to ask for some teaching plans. There is some information about subjects, time arranging, marks and textbooks. At the same time, you must choose the teachers. Different teachers have different teaching methods. If the teacher is called “killer” by the last grade, many students will give up choosing him. Because this kind of teacher will leave too much homework, too many exams and give too low grades.
There is another thing after you select the course and the teacher. How to buy textbooks makes each student feel hard. The textbooks in America are very expensive. Each copy is about $30～50. In order to save money, many students buy some used textbooks, and some students usually borrow textbooks from the school library. You must get enough ready before class. In class, discussing is very important. 75. 老师鼓励你提出问题或展示你自己的观点。They don’t usually ask you to sit well. Instead they allow you to sit or stand everywhere you like. They don’t give you much homework to do. You can learn some knowledge and do exercises by yourself. So in American schools, you must do almost all things yourself.
根据文章内容，补全71、72句中所缺单词、短语或句子。
【小题1】 At the beginning of the new term, American students have to ask for some teaching plans and get their textbooks ready besides ____________________.
【小题2】 The teacher____________________will always leave too much homework, too many exams and give too low grades.
【小题3】 根据文章内容回答问题。
Why do many students in America buy used textbooks ?
【小题4】 请将文中黑体字译成汉语。
【小题5】 请将划线句子译成英语。

American schools are quite different from those in China. In America, at the beginning of the term, students must select their courses and teachers first. While in China students usually have no chances to select their courses and teachers.

Selecting is very important for your grades in America. So at the first term, don’t select too many courses, 74.or you’ll feel very nervous and it may influence your study. Then you have to ask for some teaching plans. There is some information about subjects, time arranging, marks and textbooks. At the same time, you must choose the teachers. Different teachers have different teaching methods. If the teacher is called “killer” by the last grade, many students will give up choosing him. Because this kind of teacher will leave too much homework, too many exams and give too low grades.

There is another thing after you select the course and the teacher. How to buy textbooks makes each student feel hard. The textbooks in America are very expensive. Each copy is about $30～50. In order to save money, many students buy some used textbooks, and some students usually borrow textbooks from the school library. You must get enough ready before class. In class, discussing is very important. 75. 老师鼓励你提出问题或展示你自己的观点。They don’t usually ask you to sit well. Instead they allow you to sit or stand everywhere you like. They don’t give you much homework to do. You can learn some knowledge and do exercises by yourself. So in American schools, you must do almost all things yourself.

根据文章内容，补全71、72句中所缺单词、短语或句子。

71. At the beginning of the new term, American students have to ask for some teaching plans and get their textbooks ready besides ____________________.

72. The teacher____________________will always leave too much homework, too many exams and give too low grades.

73. 根据文章内容回答问题。

Why do many students in America buy used textbooks ?

74. 请将文中黑体字译成汉语。

75. 请将划线句子译成英语。

You carry your backpack（背包）around every day，to every class，all year long．So it's important that you choose the right one．And the time has come again：Another school year means another backpack to buy．

What's out there this year? Here's a look at three of this year's backpack trends（款式）．

1．You don't have to stay neutral（暗淡的）．There are all kinds of backpacks this year．They have lots of color and loud prints．So forget the basic black and gray（灰色）．Go for a bag that stands out and shows who you are and what you like．

2．Love lots of pockets? You’re in luck．There's a place for everything you might want to carry--your phone，iPod，water bottle．

3．Go earth-friendly．Just like everything else，school bags have gone environment-friendly．You'll find all kinds of bags made of materials that can be used again．

Do you know how to use your backpack correctly? Here are some tips：

1．Don't overload your bag．You shouldn't carry more than 10% of your body weight．

2．Carry it right．You should use both of those straps（带子）．And the bottom of the bag shouldn't be more than 10 cm below your waistline（腰部）．Any lower and it'll you’re your shoulders tired and make you lean（倾斜）forward when you walk．

3．Try to have a place for everything you carry．Make full use of those pockets．They will keep you from losing things．

1．It is important for students to choose the right backpack because _______．

A．a new school year is coming                     B．they carry backpacks very often

C．the school requires them to do so                D．it makes them follow the backpack trend

2．Which of the following is this year's backpack trend?

A．Black and gray backpacks．                     B．Backpacks made of strong materials．

C．Backpacks having many pockets．               D．Big backpacks．

3．A right way to use one's backpack is _______ according to the writer．

A．to keep both the straps on one shoulder

B．to carry as few things as possible

C．to keep the straps less than 10 cm

D．to put different things in different pockets

4．Tom is 50 kilograms so he should carry a backpack which should be no more than _______ kilograms according to the passage．

A．2.5                      B．5                         C．7.5                        D．10

5．The underlined word overload probably means “_______” in Chinese．

A．过分劳累            B．要价过高             C．过度磨损               D．装载过重