revolve, evolve, involve
revolve v.旋轉(zhuǎn)，轉(zhuǎn)動(dòng)。
the room began to revolve , then he fainted.屋子開(kāi)始旋轉(zhuǎn)，然后他就昏倒了。
evolve v.發(fā)展，演變。
agriculture evolved slowly over thousands of years.幾千年來(lái)，農(nóng)業(yè)發(fā)展得很緩慢。
involve v.需要，包含；使卷入，牽涉。
getting a driver's licence involves learning how to drive, studying the rules of the road, and taking a test.要得到駕駛執(zhí)照需要學(xué)習(xí)開(kāi)車，學(xué)習(xí)交通規(guī)則，還要經(jīng)過(guò)考試。
sanction, sanitation
sanction n.認(rèn)可，準(zhǔn)許，批準(zhǔn)。
i need my parents' sanction to stay out late.我晚回家需要得到父母的批準(zhǔn)。
sanitation n.公共衛(wèi)生，環(huán)境衛(wèi)生，衛(wèi)生設(shè)備。
strict sanitation is used in businesses such as barber shops and restaurants.在理發(fā)店和餐館等營(yíng)業(yè)場(chǎng)所執(zhí)行嚴(yán)格的公共衛(wèi)生制度。
scenery, scene, view, landscape
這一組名詞都有"景色"的意思。
scenery n.風(fēng)景，景色，舞臺(tái)布景，強(qiáng)調(diào)從美的角度看，某個(gè)國(guó)家或地區(qū)的總體外貌。
each year, we spend our vacation in the mountains and enjoy the scenery.我們每年到山區(qū)渡假，并欣賞那里的風(fēng)景。
scene n.指從遠(yuǎn)處看到的某一具體景色、景象，也可以指人物的活動(dòng)場(chǎng)面；(犯罪的)地點(diǎn)，現(xiàn)場(chǎng)。
they stood gazing the happy scene of children playing in the park.他們站在那里，注視著孩子們?cè)诠珗@里玩耍的場(chǎng)景。
view n.指從遠(yuǎn)處或窗戶看到的視野范圍內(nèi)的風(fēng)景；觀點(diǎn)，看法。
our house has a view of the park.我們的房子可以看到公園的景色。
landscape n. (自然的)風(fēng)景，景色；風(fēng)景畫。
the landscape seen from the mountains is green and beautiful.站在群山之巔看到的是一片美麗的綠色。
sensible, sensitive, sentimental, sensational
這是一組形近易混詞。
sensible a.有知覺(jué)的，可感知的；明智的。
the patient was speechless but still sensible.病人雖然不能說(shuō)話但仍然有知覺(jué)。
sensitive a.敏感的，靈敏的。
this film is sensitive to light.這種膠片對(duì)光很敏感。
sentimental a.多愁善感的，感傷的。
the novel has scenes full of love and loss; it is so sentimental!小說(shuō)有多處場(chǎng)景充滿愛(ài)情的悲歡離合，真是感傷�。�
sensational a.聳人聽(tīng)聞的，令人激動(dòng)的。
i read a sensational story about a ten-year-old mother.我聽(tīng)到一則聳人聽(tīng)聞的故事：十歲女孩做媽媽。
technological, technical
這是一組形近易混詞。
technological a.技術(shù)上的。
a major technological breakthrough主要技術(shù)性突破
technical a.技術(shù)的，工藝(學(xué))的；專門的，深?yuàn)W的。the banker made some technical points about the economy in his speech.銀行家在他的關(guān)于經(jīng)濟(jì)的演說(shuō)中提出了幾個(gè)很專業(yè)的論點(diǎn)。
transaction, transition, transmission, transformation, transfer
這是一組在考研和cet-6中經(jīng)常出現(xiàn)的形近易混詞。
transaction n.交易行為，處理。
transactions of shares on the stock exchange were up today.今天證券交易所的股票成交額上升了。
transition n. (從一種情況到另一種的)過(guò)渡，更替。
the transition from high school to college can be difficult for students.對(duì)于學(xué)生來(lái)說(shuō)，從中學(xué)到大學(xué)的過(guò)渡會(huì)是困難的。
transmission n.傳播(比如疾病)；廣播。
the transmission of germs can occur by contact, breathing, and eating.細(xì)菌通過(guò)接觸、呼吸和飲食傳播。
transformation n. (外觀或性質(zhì)的)改變，改觀，轉(zhuǎn)變。
his character seems to have undergone a complete transformation since his marrige.他結(jié)婚之后性格判若兩人。
transfer n.轉(zhuǎn)移，轉(zhuǎn)讓；(工作的)調(diào)動(dòng)；(旅途中的)換乘，改變路線。
the club's goalkeeper isn't happy here, and has asked a transfer.這個(gè)足球俱樂(lè)部的守門員在此過(guò)得不愉快，已經(jīng)要求轉(zhuǎn)會(huì)到其他俱樂(lè)部。