Such electron tubes________in a radio set are also found in a TV set.A.that we use B.as we use C.as we use them D.that we use them

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We find that bright children are rarely held back by mixed-ability teaching. On the contrary, both their knowledge and experience are enriched. We feel that there are many disadvantages in streaming(把...按能力分班) pupils. It does not take into account the fact that children develop at different rates. It can have a bad effect on both the bright and the not-so-bright child. After all, it can be quite discouraging to be at the bottom of the top grade!
Besides, it is rather unreal to grade people just according to their intellectual ability. This is only one aspect of their total personality. We are concerned to develop the abilities of all our pupils to the full, not just their academic ability. We also value personal qualities and social skills and we find that mixed-ability teaching contributes to all these aspects of learning.
In our classrooms, we work in various ways. The pupils often work in groups: this gives them the opportunity to learn to cooperate, to share, and to develop their leadership skills. They also learn how to cope with personal problems as well as learning how to think, to make decisions, to analyze and evaluate, and to communicate effectively. The pupils learn from each other as well as from the teacher.
Sometimes the pupils work in pairs; sometimes they work on individual tasks and assignments, and they can do this at their own speed. They also have some formal class teaching when this is appropriate. We encourage our pupils to use the library, and we teach them the skills they need in order to do this efficiently. An advanced pupil can do advanced work; it does not matter what age the child is. We expect our pupils to do their best, not their least, and we give them every encouragement to attain this goal.

The writer's purpose in writing this passage is to
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A．argue for teaching bright and not-so-bright pupils in the same class
B．recommend pair work and group work for classroom activities
C．offer advice on the proper use of the library
D．emphasize the importance of appropriate formal classroom teaching

We want to use the water to irrigate barren land.

A:hairless
B:bare
C:empty
D:bald

The water we drink and use is running short in the world.We all have to learn how to stop wasting our limited water.One of the steps we should take is to find ways of reusing it.Experiments have already been done in this field.
Today in most large cities,fresh water is used only once,then it runs into waste system.But it is possible to pipe the used water to a purifying factory.There it can be filtered and treated with chemicals so that it can be used again,just as it were fresh from a spring.
But even if every large city purified and reused its water,we still would not have enough.Then we could turn to the oceans.All we’d have to do to make use of the seawater on earth is to get rid of the salt.This process is called desalinization,and it is already in use in many parts of the world.
The way to stop wasting our limited water is to________.

A.do experiments with water
B.purify the used water and reuse it
C.use fresh water once again
D.make use of seawater

Let's learn to use the problem we are facing __________ a stepping-stone to future success.

A.to
B.for
C.as
D.by

共用题干
In every cultivated languages there are two great classes of words which taken together,comprise the whole vocabulary.First,there are those words_________(51)which we become acquainted in daily conversation,which we learn,that is to say,from the_________(52)of our own family and from our familiar associates,and which we should know and use_________(53)we could not read or write.They__________(54)the common things of life,and are the stock in trade of all who use the language.Such words may be called"popular",since they belong to the people___________ (55)and are not the exclusive_______(56)of a limited class. On the other hand,our language ___________(57)a multitude of words which are comparatively_________(58)used in ordinary conversation.Their meanings are known to every educated person,but there is little_________(59)to use them at home or in the market-place. Our________ (60) acquaintance with them comes not from our mother's________(61)or from the talk of our schoolmates,________(62)from books that we read,lectures that we_________(63),or the more formal conversation of highly educated speakers who are discussing some particular topic in a style appropriately elevated above the habitual ________(64)of everyday life.Such words are called "learned" ,and the________(65)between them and the "popular" words is of great importance to a right understanding of linguistic process.

_________(53)
A:even
B:despite
C:even if
D:in spite of