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Our chemistry teacher told us to do the experiment _____ (careful).

Our chemistry teacher told us to do the experiment _____ （careful).

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更多“Our chemistry teacher told us …”相关的问题

第1题

Tell me since when he ______ in your school. A. taughtB. has taught C. teache

Tell me since when he ______ in your school.

A. taught

B. has taught

C. teaches

D. had taught

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第2题

The energy which the sun radiates goes in every direction, and only a minute part of it fa

lls on the earth. Even so, it represents power of about 5,000,000 horsepower (马力)per square mile per day; the sun gives us as much energy every minute as mankind utilizes in a year. At present, we use this energy in directly, and it is our final source of power. Coal represents the chemical action of the sun on green plants thousands of years ago. Water power results from the rain formed by vapor which comes from the evaporation of power. Coal represents the rain formed by vapor which comes from the evaporation of water under the sunshine. Even windmills operate because of air currents set in motion by the different heating affects of the sun in different places. Some day, through chemistry or some type of solar engine, we shall harness this great source of energy more directly. Already a scientist has worked out an engine, surprisingly efficient, in with the sun' s rays are concentrated through mirrors on a tube of water to create steam.

How much energy given off by the sun reaches the earth？

A．100 % but indirectly

B．5 %

C．0.5

D．only a very tiny amount

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第3题

—Which subject do you like______？ —I like chemistry than any other one. A. better,

—Which subject do you like______？

—I like chemistry than any other one.

A. better, better

B. best, better

C. best, best

D. better, best

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第4题

The nation is only interested in people______. A. with diplomasB. who specialize in physic

The nation is only interested in people______.

A. with diplomas

B. who specialize in physics and chemistry

C. who are valuable to the gross national product

D. both A and C

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第5题

This passage centers mainly on ______ .A．harnessing energy through chemistryB．our last sou

This passage centers mainly on ______ .

A．harnessing energy through chemistry

B．our last source of power

C．how water power is produced

D．the amount of solar energy that can be utilized

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第6题

The passage tells us that proof of life on Mars would ______.A．make clear the complex chem

The passage tells us that proof of life on Mars would ______.

A．make clear the complex chemistry in the development of life

B．confirm the suggestion that bacterial fossils traveled to Earth on a meteor

C．reveal the kind of conditions under which life originates

D．provide an explanation why life is common in the universe

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第7题

提示：原本擅长化学的Cathy考试时因粗心漏做一页试题。她正闷闷不乐时遇见了Mary。（Mary = M ; Cat

提示：原本擅长化学的Cathy考试时因粗心漏做一页试题。她正闷闷不乐时遇见了Mary。

(Mary = M ; Cathy = C )

M : Hi, Cathy, you don&39; t look happy. 51 ？

C : I didn&39; t do well in the chemistry test.

M : Really？ I could hardly believe it. Everyone knows you are 52 .

C : But this time 53 .

M : What happened？

C : I missed 54 .

M : What a pity ! So 55 next time !

C : Yes, I will.

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第8题

It is absolutely ______ that our class will win the game.A．sureB．exactC．rightD．certain

It is absolutely ______ that our class will win the game.

A．sure

B．exact

C．right

D．certain

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第9题

As a matter of fact, our life-styles are changing _________andour bodies. A． a

As a matter of fact, our life-styles are changing _________and our bodies.

A． as such

B． so such

C． such as

D． so are

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第10题

Our teacher had us ______ a report on our investigation of the case.A．writingB．to writingC

Our teacher had us ______ a report on our investigation of the case.

A．writing

B．to writing

C．to write

D．written

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