流行性出血热的传染源主要是A．啮齿类 B．猪 C．病毒携带者 D．犬 E．急性期病人

阅读理解。

     Very few people enjoy exams. I don't, either. And although I tell myself not to worry about them, I always

do! So I am not surprised that my students worry about them, too, even though they usually don't need to.

Because they are afraid of failing. However, since it is hard not to worry at all, we all must try not to worry

too much. Why? Because worrying makes exams worse! How to do this?

     1. Ask the teacher about how to revise and about exam skills- how to work when you are in the exam.

     2. Good students don't wait until the week before an exam. They study all through the year. It is not

possible to learn everything at the last minute. So don't leave it till then!

    3. If you start planning and working for each exam early and you make sure that you understand what

you are studying, then, when it is over, you'll be able to say, "What a good exam that was!"

     4. Take a short rest during your time of work and revision. If your mind is tired, it will not remember well.

Work at the time when you know you will work at your best.

     5. If you are studying in the evening, don't go straight to bed afterwards. Your mind will still be "going

round and round" - thinking too much. Do something else, maybe walk or get exercise. Choose something

that will relax you, and make you think of other things.

    6. If you feel bad, talk to someone about your worries. But don't be too relaxed! Some stress over exams

makes you work hard for them.

1. How does the writer feel about exams?

A. Excited.

B. Bored.

C. Worried.

D. Surprised.

2. Why are the students afraid of exams?

A. Because they are afraid of failing.

B. Because they want to get full marks.

C. Because exams are usually hard.

D. Because they think their teachers will be angry with them they can't pass the exams.

3. Which is NOT mentioned (提到) in the passage?

A. Good students don't wait until the week before an exam.

B. Start planning and working for each exam early.

C. If you don't know how to work for an exam,ask the teach about it.

D. You should sleep well before the exam.

4. According to the passage, if you feel bad, you'd better ______.

A. take a short rest

B. tell someone about your worries

C. walk or get exercise

D. keep busy working and forget your worries

5. The writer of the passage is probably a ______.

A. student

B. teacher

C. journalist

D. scientist

秦岭-淮河线是哪两个温度带的分界线（　　）

A．热带、暖温带

B．热带、亚热带

C．温带、寒带

D．亚热带、暖温带

阅读理解。

     There are some very good things about open education. This way of teaching allows the students to

grow as people, and to develop their own interests in many subjects. Open education allows students to

be responsible for their own education, as they are responsible for what they do in life. Some students do

badly in a traditional classroom. The open classroom may allow them to enjoy learning. Some students

will be happier in an open education school. They will not have to worry about grades or rules. For

students who worry about these things a lot, it is a good idea to be in an open classroom.

     But many students will not do well in an open classroom. For some students, there are too few rules.

These students will do little in school. They will not make good use of open education. Because open

education is so different from traditional education, these students may have a problem getting used to

making so many choices. For many students it is important to have some rules in the classroom. They

worry about the rules even when there are no rules. Even a few rules will help this kind of students. The

last point about open education is that some traditional teachers do not like it. Many teachers do not

believe in open education. Teachers who want to have an open classroom may have many problems

at their schools.

     You now know what open education is. Some of its good points and bad points have been explained. You may have your own opinion about open education. The writer thinks that open education is a good

idea, but only in theory. In actual fact, it may not work very well in a real class or school. The writer

believes that most students, but of course not all students, want some structure in their classes. They want

and need to have rules. In some cases, they must be made to study some subjects. Many students are

pleased to find subjects they have to study interesting. They would not study those subjects if they did not have to.

1. Open education allows the students to __________.

A．grow as the educated

B．be responsible for their future

C．develop their own interests

D．discover subjects outside class

2. Open education may be a good idea for the students who __________.

A．enjoy learning

B．worry about grades

C．do well in a traditional classroom

D．are responsible for what they do in life.

3. Some students will do little in an open classroom because __________.

A．there are too few rules

B．they hate activities

C．open education is similar to the traditional education

D．they worry about the rules

4. Which of the following best summarizes the passage?

A．Open education is a really complex idea.

B．Open education is better than traditional education.

C．Teachers dislike open education.

D．The writer thinks that open education is a good idea in practice.

（）是图书馆学研究的核心要素。

作两个变量积差法的相关系数的假设检验，已知n=10，查t界值表时其自由度是

A．10

B．9

C．8

D．19

E．18