【正文】 ons C．works D．methods14．When autumn es, the ________ will turn yellow, and fall from the tree.A．mountains B．leaves C．birds D．plants15．—The air is very fresh in our city. There is less _______ than before.—Yes. The government has taken action to protect the environment.A．wood B．pollution C．noise D．water16．For the time being we can collect much ________ either from books or on the Internet.A．idea B．method C．information D．suggestion17．—I didn’t have the to go out alone at night when I was a little child.—So did I. But now I’m brave enough.A．courage B．power C．a(chǎn)bility D．chance18．— Did Lucy dress herself beautifully at her birthday party?— Yeah, of course. Her white dress caught everyone’s ______.A．celebration B．organization C．introduction D．a(chǎn)ttention19．—Could you take out the rubbish and do the dishes，Tony？—Sure，Mom will be mad if she sees this _________，I think．A．matter B．messC．trouble D．difficulty20．—Dad, what is the loudspeaker saying?—It is to the fight to Shanghai is checking tickets now.A．customers B．passengers C．members D．tourists21．—Yuan Longping and his team have succeeded in planting saltwater rice.—I’ve heard about it. He has made a huge ________ to our country’s agriculture.A．invention B．petition C．contribution D．production22．This is a ________ of our city. Look! Our school is here.A．map B．music C．name D．team23．—I really admire these scientists in different fields in our country.—I agree. They have made a great ________ to our country, even to the world.A．celebration B．conversation C．contribution D．introduction24．— Can you describe what Mr. Green’s daughter is like?— Oh, she has the very ______ of Mr. Green. I’m sure you can know her at the first sight.A．photo B．voice C．look D．taste25．My sister has no sense of ________. She always gets lost in the city streets.A．shame B．duty C．direction D．humour26．—Do you know a Chinese called ChenGao?—Exactly, his ________ makes the whole world shocked and he bees the youngest PHD supervisor（博導(dǎo)）in Math area.A．a(chǎn)dvantage B．progress C．a(chǎn)chievement D．a(chǎn)ttention27．All the ________ was for nothing because the visit was cancelled. Put it away now.A．pollution B．connection C．suggestion D．preparation28．I think some famous stars should pay more attention to their behavior because what they do can have a great ________on teenagers.A．change B．impression C．progress D．influence29．Peter is interested in reading books about animals and plants. He has a real ________ of animals, birds and flowers.A．courage B．energy C．knowledge D．experience30．We should follow our teachers’________ about how to achieve