单项选择题

A．Why species don’t avoid extinction by adapting. B．Why……

A．Why species don’t avoid extinction by adapting.
B．Why species become extinct at the rate they do.
C．Why humans aren’t extinct.
D．How many species aren’t extinct.

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填空题36（）

单项选择题A．He enjoyed using it. B．He left it in the taxi. C．He left it at the airport. D．He lost it on his trip.

A．He enjoyed using it.
B．He left it in the taxi.
C．He left it at the airport.
D．He lost it on his trip.

单项选择题A．There was much more disorder. B．This time the electricity supply failed. C．It was quite unexpected. D．It came in the cool autumn.

A．There was much more disorder.
B．This time the electricity supply failed.
C．It was quite unexpected.
D．It came in the cool autumn.

填空题exerting

单项选择题A．How to prevent children from watching TV. B．How children like frightening TV programs. C．What bad effects TV programs have on children. D．What teachers think of today’s children.

A．How to prevent children from watching TV.
B．How children like frightening TV programs.
C．What bad effects TV programs have on children.
D．What teachers think of today’s children.

单项选择题A．She easily gets embarrassed and nervous in class. B．She received a poor grade in the presentation. C．She had not completed her assignment. D．She was unable to attend her psychology class.

A．She easily gets embarrassed and nervous in class.
B．She received a poor grade in the presentation.
C．She had not completed her assignment.
D．She was unable to attend her psychology class.

单项选择题A．Food is no longer a basic need for us modern people. B．We eat a wide variety of food. C．We no longer eat food that primitive people ever ate. D．We eat more food than primitive people do.

A．Food is no longer a basic need for us modern people.
B．We eat a wide variety of food.
C．We no longer eat food that primitive people ever ate.
D．We eat more food than primitive people do.

单项选择题A．She is writing a competitive paper for a scholarship. B．She is doing a paper for the research demanded. C．She missed the lecture last Friday. D．She is planning to attend the scholarship award ceremony.

A．She is writing a competitive paper for a scholarship.
B．She is doing a paper for the research demanded.
C．She missed the lecture last Friday.
D．She is planning to attend the scholarship award ceremony.

单项选择题A．A dentist. B．A surgeon. C．A physician. D．A chemist.

A．A dentist.
B．A surgeon.
C．A physician.
D．A chemist.

单项选择题A．Since last year. B．For several weeks. C．For a few days. D．For a few hours.

A．Since last year.
B．For several weeks.
C．For a few days.
D．For a few hours.