In every cultivated language there are two great classes of words which, taken together, comprise the whole vocabulary.First, there are those words 1 which we become acquainted in daily conversation, which we 2 ,that is to say, from the 3 of our own family and from our familiar associates, and 4 we should know and use 5 we could not read or write.They 6 the common things of life, and are the stock in trade of all who 7 the language.Such words may be called“popular”, since they belong to the people 8 and are not the exclusive 9 of a limited class.On the other hand, our language 10 a multitude of words which are comparatively 11 used in ordinary conversation.Their meanings are known to every educated person, but there is little 12 to use them at home or in the market-place.Our 13 acquaintance with them comes not from our mother's 14 or from the talk of our school-mates, 15 from books that we read, lectures that we 16 ,or the more 17 conversation of highly educated speakers who are discussing some particular 18 in a style appropriately elevated above the habitual 19 of everyday life.Such words are called“learned”, and the 20 between them and the“popular”words is of great importance to a right understanding of linguistic process.

 1.A.at B.with C.by D.through

2.A.study B.imitate C.stimulate D.learn

3.A.mates B.relatives C.members D.fellows

4.A.which B.that C.those D.ones

5.A.even B.despite C.even if D.in spite of

　6.A.mind B.concern C.care D.involve

7.A.hire B.apply C.adopt D.use

8.A.in public B.at most C.at large D.at best

9.A.right B.privilege C.share D.possession

10.A.consists B.comprises C.constitutes D.composes

11.A.seldom B.much C.never D.often

12.A.prospect B.way C.reason D.necessity

13.A.primary B.first C.principal D.prior

14.A.tips B.mouth C.lips D.tongue

15.A.besides B.and C.or D.but

16.A.hear of B.attend C.hear from D.listen

17.A.former B.formula C.formal D.formative

18.A.theme B.topic C.idea D.point

19.A.border B.link C.degree D.extent

20.A.diversion B.distinction C.diversity D.similarity

In the United States, teaching is very important. If teachers do not teach well, students complain. If many students do not understand, people think that the teacher does not do a good job. The teacher has big responsibility to make sure students understand. In a sense, students are consumers and the teacher is offering services.
Students have the right to evaluate their teachers, and they usually do so at the end of each course. That evaluation includes lots of aspects of teaching, such as explanation, preparation, using good examples, answering questions, and organization of classes.
Students are supposed to read required textbooks and recommended books before classes. Without reading them, they will find it very difficult to understand the class. Basic courses on doing research and writing papers are taught at the beginning of the program. They teach things very concretely(具体地) and clearly. Students are expected to apply what they have learned to their studies.
Classes are usually divided into lectures and seminars. There are some lecture classes, where the teacher just gives a lecture, and students ask questions at the end. Most graduate level classes are lectures and discussions. Participating in discussions is very important. Higher level classes involve very little lecturing. They emphasize discussion and presentation by the students.
1According to the passage, good teachers should ___________.
A．try to please their students
B．treat their students as consumers
C．understand their students well
D．made sure their students understand
2What are students expected to do before attending a class?
A．Go over the lessons thoroughly.
B．Understand the textbooks well.
C．Do the reading assignments.
D．Prepare on outline for discussion.
3When a program starts, students should first __________.
A．learn how to do research and write papers.
B．have some learning experience
C．learn about the course concretely and clearly
D．know how to participate in discussions.
4Higher level classes are taught mainly through ________
A．giving a lot of lectures to students
B．involving students in discussions
C．asking students questions in class
D．answering students’ questions in class

_____ in every aspect of his company’s business, Paul made himself busy day and night.

A. Being involved     B. Involved       C. Involving       D. To involve

In America, Virginia Beach has all the elements of a classic seaside resort: brilliant beaches, a lively boardwalk, plenty of restaurants and nightspots, and amusement rides are sure to appeal to kids. Many believe Virginia Beach is at its best in the off-season, when the town is less crowded but the weather is still mild.

Meanwhile, some safety tips should be followed, enjoying the happiness and excitement the beach offers.

The number l safety tip concerns ocean safety: pay attention to Flag conditions posted on the lifeguard stands. Lifeguards post a red flag to warn when the ocean water is dangerous. Take them seriously! Tourists from land-locked regions are particularly easily attracted by the magic of the waves. However, a calm ocean can become risky without warning. Make sure you swim near a lifeguard. Swimming without lifeguard protection is almost five times as great as drowning at a beach with lifeguards.

Never swim alone. Many drownings involve single swimmers. When you swim with someone else, if one of you has a problem, the other may be able to get help, including signaling for assistance from others.

Don't fight the current. The facts show that some 80% of rescues by lifeguards at ocean beaches are caused by currents. These currents are formed by surf and gravity, because once surf pushes water up the slope of a beach, gravity pulls it back. This can create concentrated rivers of water moving offshore. If you are caught in a rip current, don't fight it by trying to swim directly to shore. Instead, swim parallel to shore until you feel the current relax, then swim to shore. Most rip currents are narrow and a short swim parallel to shore will help bring you to safety.

1.When coming to Virginia Beach, children can enjoy the happiness of      .

A. walking on the road made of wood             B. joining the nightspots

C. having interesting rides                                     D. skiing in the sea

2.Many people believe the best time to visit Virginia Beach may be      .

A. after autumn school term beginning    B. in the slimmer vacation

C. during the Christmas holiday                            D. in the cold winter

3.Swimming in the sea you'd better not swim      .

A. with a friend               B. within the sight of the lifeguard

C. with the current                D. as far as you like

4.From the passage, we can know      .

A. one in five persons swimming in the sea is drowned

B. if one with lifeguard were drowning, five persons without lifeguard would be

C. some 80% people drowning by the currents are rescued by lifeguards

D. some 20% drowning by the currents are rescued by life guards

5.The passage mainly tells us       .

A. some safety tips when swimming in the sea

B. the happiness and excitement the beach offers

C. Virginia Beach has all the elements of a classic seaside resort

D. the dangers for tourists from land-locked regions to swim in the sea

In this section, we will briefly describe possible ways of reducing the costs and risks ______ in doing this.

A．involving          B．involved          C．to involve         D．being involved