【正文】 gy.—Hard to believe! Scientists are full of ________ which leads to great changes in our life.A．instruction B．instrument C．invention D．introduction13．Would you send me some ________ of yours? I miss you very much!A．magazines B．photos C．phones D．works14．I39。m sure Cindy will make it to the hotel. She has a good ________ of directions.A．idea B．feeling C．experience D．sense15．When autumn es, the ________ will turn yellow, and fall from the tree.A．mountains B．leaves C．birds D．plants16．—The sweater is not the right ________ for me.—Well, shall I get you a bigger one or a smaller one?A．price B．color C．size D．material(材料)17．—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．Learning English in a classroom is important, but using English in the real ________ will improve your English skills greatly.A．condition B．situation C．event D．position21．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．introduction22．Cindy is always full of __________ because she takes a lot of exercise everyday.A．courage B．knowledge C．energy D．experience23．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．mistakes24．A factory will be built for the __________ of this type of new energy car.A．position B．population C．production D．pronunciation25．— Do you really think you can learn that much in only a couple of hours?— Yes. We will try a very useful ________ of dealing with memory problems.A．report B．process C．method D．a(chǎn)ctivity26．Because of the outbreak of Corona virus, people all over the world are keeping a close eye on medical ________ of Chinese medicine, like Lianhuaqingwen Capsule (膠囊).A．value B．price C．cost D．wealth27．Life is like riding a bicycle. To keep your ________, you must keep moving.A．promise B．position C．balance D．a(chǎn)bility28．—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．joy29．—Sam’s ________ is worth praising, but saving someone from the river alone is too dangerous.—Yes. As teenagers, we had better ask adults for help.A．humour B．courage C．wisdom D．purpose30．All