【推荐1】The students like the laboratory because they can do a(n) ________ in it.

A．experience

B．instrument

C．introduction

D．experiment

【推荐2】—How was your ________ yesterday, Tony?
—It was a great success! I did it well with the help of my chemistry teacher.

A．adventure

B．exhibition

C．experiment

D．operation

【推荐3】—My sister was sent to teach English in a poor mountain village in Xinjiang last year.
—She said she would never forget some pleasant ______ while working there.

A．experiments	B．expressions
C．experiences	D．emotions

【推荐1】—Could you tell me who was the ruler of the USA in the 17th century?
—Sorry. I have little ________ of American history.

A．message

B．information

C．knowledge

D．advice

【推荐2】Our physics teacher has some _________ of engines and mechanics and he knows how to repair cars.

A．success

B．confidence

C．progress

D．knowledge

【推荐3】—Finding information is not a big deal today.
—Well, the ________ is how we can tell whether the information is useful or not.

A．courage

B．challenge

C．message

D．knowledge

【推荐1】The students can’t find much ________ about the writer on the Internet.

A．information

B．story

C．document

D．moment

【推荐2】—Let’s go out for a walk, shall we?
—Sorry. This is not the right ________ to invite me for I am too tired to walk.

A．moment

B．period

C．step

D．chance

【推荐3】I’m so tired. This is not the right _______ to ask me to go for a walk.

A．place

B．attitude

C．moment

【推荐1】一What a________! What are you doing?
一I'm looking for the movie ticket.

A．mess

B．stress

C．waste

【推荐2】—Peter, please show your ________ about the problem.
—I think it seems hard, but there must be a way to solve it.

A．relation

B．report

C．result

D．opinion

【推荐3】In some ways, global warming is a ________ for humans, so we must take it on to build a fine world.

A．choice

B．chance

C．challenge