【正文】 olunteer志愿者；trainer訓(xùn)練員；teacher老師。他連鄰居的名字都不知道。故選B。risk風(fēng)險；effort努力；suggestion建議；balance平衡。11．B解析：B【詳解】句意：——為什么藝術(shù)家不努力讓別人理解或喜歡他？ ——他不在乎別人怎么看他。decisions決定；directions方向；sides邊；steps步驟。你現(xiàn)在所做的是改變現(xiàn)狀的關(guān)鍵。我必須采取措施糾正它。故選B。humour幽默；courage勇氣；wisdom智慧；purpose目的。作為青少年，我們最好向成年人尋求幫助。9．B解析：B【詳解】句意：——山姆的勇氣值得稱贊，但獨自從河里救人太危險了。根據(jù)“Sure. I’m in no... that life on Mars would be interesting”可知，此處表示“確信”，be in no doubt表示“毫無疑問，確信”?？疾槊~辨析。8．A解析：A【詳解】句意：——你想移居到火星嗎？——當(dāng)然。pollution污染；production產(chǎn)品；pronunciation發(fā)音；population人口。7．B解析：B【詳解】句意：由于市場需求的不斷增長，盲盒的產(chǎn)量將迅速上升。根據(jù)“of milk”可知，牛奶是瓶裝的，因此用名詞bottles。考查名詞。故選B。stranger陌生人；tourist游客；guide導(dǎo)游；customer消費者。5．B解析：B【詳解】句意：游客是指正在旅行或參觀某個地方的人。根據(jù)句意理解及空后“how we can tell whether the information is true or not”可知，怎樣辨析信息是否真實是一個“挑戰(zhàn)”?？疾槊~辨析?！堑摹８鶕?jù)“They are Alipay, highspeed trains, shared bikes and online shopping”及常識可知，這是詢問中國的四大新發(fā)明，故選A?？疾槊~辨析。3．A解析：A【詳解】句意：——你知道中國的四大新發(fā)明嗎？——是的。suggestions建議，可數(shù)名詞復(fù)數(shù)；advice建議，不可數(shù)名詞；hobbies愛好，可數(shù)名詞復(fù)數(shù)；knowledge知識，不可數(shù)名詞。2．A解析：A【詳解】句意：劉先生是一個聰明人，他經(jīng)常給我們一些建議。position位置；education教育；collection收集；attention注意。有志者事竟成。s easier for you to pay ________ to it for a long time.A．a(chǎn)ttention B．interest C．progress D．information17．—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)18．The ____of antibiotics(抗生素) in the 20th century has made a great difference to us.A．invention B．instruction C．method D．discovery19．— 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)ttention20．Look! The children are having so much ________ playing hide and seek in the flower sea.A．joke B．fun C．knowledge D．skill21．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．A factory will be built for the __________ of this type of new energy car.A．position B．population C．production D．pronunciation23．—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．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．wealth25．With the development of the service industry, the working ________ is increasing and more jobs should be offered.A．invention B．pronunciation C．introduction D．population26．—I have great ________ in learning Chemistry