[单项选择]All speakers produce summaries of the sessions they gave.
The speakers should write
A. a proposal for their session.
B. a brief report about their session.
C. full details of whet is in their session.

[单项选择]All speakers produce summaries of the sessions they gave.
The speakers should write
A. a proposal for their session.
B. a brief report about their session.
C. full details of whet is in their session.

[单项选择]Could all speakers please produce summaries of the sessions they gave.
The speakers should write
A. full details of what is in their session.
B. a brief report about their session.
C. a proposal for their session.

[单项选择]Future education needs to produce graduates of all the following categories EXCEPT（）
A. those who can adapt to different professions.
B. those who have a high flexibility of mind.
C. those who are thinkers, historians and philosophers.
D. those who possess only highly specialized skills.

[单项选择]Caterpillars off all species produce an identical hormone called "juvenile hormone" that maintains feeding behavior. Only when a caterpillar has grown to the right size for pupation to take place does a special enzyme halt the production of juvenile hormone. This enzyme can be synthesized and will, on being ingested by immature caterpillars, kill them by stopping them from feeding.
Which of the following, if true, most strongly supports the view that it would not be advisable to try to eradicate agricultural pests that go through a caterpillar stage by spraying croplands with the enzyme mentioned above
A. Most species of caterpillar are subject to some natural predation.
B. Many agricultural pests do not go through a caterpillar stage.
C. Many agriculturally beneficial insects go through a caterpillar stage.
D. Since caterpillars of different species emerge at different times, several sprayings would be necessary.
E. (E) Although the enzyme has been synthesized in the laboratory, no large-scale production facilities exist as yet.

[单项选择]After all, not even （　） speakers of English find it easy to do some reading aloud correctly in RP(Received Pronunciation).
A. national
B. native
C. natural
D. non-stop

[填空题]All the products in this factory (produce)（）according to international quality standard.

[填空题]All the products in this factory (produce) ______ according to international quality standard.

[单项选择]Who are the speakers
A. Salesmen.
B. Editors.
C. Cooks.
D. Advertising agents.

[单项选择]Where are the speakers
A. In a bookstore.
B. In a restaurant.
C. In a lawyer’s office.