【正文】 progress D．information18．Yancheng Nature Reserve covers an ______ of over 45,000 square kilometers. It is one of the world’s most important wetlands.A．a(chǎn)rea B．object C．space D．population19．The ____of antibiotics(抗生素) in the 20th century has made a great difference to us.A．invention B．instruction C．method D．discovery20．— How do you like Jianye Library?— Wonderful! I’m especially satisfied with the high ________ of its service.A．cost B．value C．standard D．price21．—Have you heard of a new technology about TV?—Yes. It’s “8K TV”. I believe that it will make a great ________ to people’s life.A．surprise B．progress C．difference D．choice22．Kids under the age of ten can’t make good_______. They are not sure which is better for them.A．choices B．progress C．efforts D．mistakes23．—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．—I have great ________ in learning Chemistry and I am so worried. Could you help me?—Sure. I would be glad to.A．interest B．trouble C．fun D．joy25．—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)ttention26．Uygur (維吾爾族) dance has a strong ________ of rhythm, sometimes fast while sometimes slow.A．sense B．service C．spirit D．secret27．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．influence28．We should follow our teachers’________ about how to achieve a balance between our study and hobbies.A．decision B．a(chǎn)ttention C．suggestion D．introduction29．—Why did the artist make no ________ to be understood or liked?—He didn’t care what others think of him.A．risk B．effort C．suggestion D．balance30．—Our country is developing so quickly.—I think so. School should care about the full ________ of students’ talents.A．situation B．condition C．development D．standard31．—Why are you so crazy about travelling, Wu Dong?—Travelling can offer us real________of languages, customs and cultures.A．a(chǎn)ttraction B．background C．difference D．experience32．— Could you take out the rubbish and do the dishes, Tony?— Sure! Mom will be angry if she sees this ________, I think.A．matter B．mess C．trouble D．difficulty33．The police give us a lot of ________ on how to protect personal information.A．trust B．a(chǎn)dvice C．stress D．difficulty34．—What’s your mother?—She is a ________ in a pan