資源簡介 (共16張PPT)單擊此處添加副標題內容狀語從句單擊此處添加標題時間狀語從句1.when、while和as的用法when “在……時候”,可與延續性動詞或短暫性動詞連用;從句動作可以發生在主句動作之前、之后或與主句動作同時發生while “在……期間;與……同時”,一般只可與延續性動詞連用,從句動作與主句動作同時發生as “當……時;隨著”,常與延續性動詞連用,從句動作與主句動作同時或幾乎同時發生例句:When I met my boss, I seemed very nervous.One Sunday morning, while the children were reading, I stepped to the doorway of the yard to take a break.高考題常見陷阱:While I got home, it began to rain.When I got home, it began to rain.√got 是短暫動詞真題實戰:1. (2023浙江卷)_______ I was about to leave, it began to rain heavily.2. (2021全國I 卷) _________ the discussion was going on, someone took a photo secretly.做題方法:1. 看從句動詞----是短暫性還是延續性2. 是否需要強調“同步進行”或“對比”WhenWhile2.before與since的用法(1)before表示“在……之前;還未……就……;還沒來得及……就……”,常用于以下句型。It will be+一段時間+before... 多久之后才……It won't be long before... 不久之后就……It was+一段時間+before... 過了多久才……例句:It didn't take long before he finished his task.(翻譯句子)(2)since表示“自從……”,其引導的從句在句中作狀語時,主句常用現在完成時或現在完成進行時,從句常用一般過去時。since表示“自從……以來”,常用于“It is/has been+時間段+since從句”句型。該句型表示“自從……已經多長時間了”,從句的時態常用一般過去時。3.till、until和not...until...的用法(1)until/till意為“直到……為止”,表示某動作一直延續到某時間點才停止,此時主句謂語動詞是延續性動詞且為肯定形式。例句:We will explore every solution till/until we find an answer. 我們要探尋一切解決方案,直到找到答案為止。(2)not...until...“直到……才”,表示某動作從某時間點開始發生,主句謂語動詞是短暫性動詞。We didn’t realize the danger until it was too late.4.表示“一……就……;剛……就……”的常用表達(1)表示“一……就……”的表達有as soon as、immediately、directly、the moment、the minute、 the instant、instantly等。例句:(2023·新高考Ⅱ卷)I promised to take care of Tiffy and call them as soon as we got to Kansas City. 我答應照顧Tiffy,一到堪薩斯城就給他們打電話。(2)表示“剛……就……”的表達有no sooner... than...、 hardly/scarcely...when...等。該結構中,主句謂語動詞應用過去完成時,而than與when引導的從句謂語動詞應用一般過去時。此外,如果no sooner、hardly、scarcely等置于句首,主句應部分倒裝。例句:She had no sooner said it than she burst into tears.=No sooner had she said it than she bursy into tears.Scarcely had the game started when it began to rain.考點2 讓步狀語從句1.although、though、while等常引導讓步狀語從句。Though/Although/While regular exercise is very important, it's never a good idea to exercise too close to bedtime. 盡管定期鍛煉很重要,但臨睡前鍛煉絕不是個好主意。2.as引導的讓步狀語從句要用倒裝結構,即將從句中的表語、狀語或動詞原形置于句首;若表語是單數名詞,前置時要省略冠詞。此時as可與though互換。Child as/though he is, he has helped me a lot.他盡管是個孩子,卻幫了我很多。3.“特殊疑問詞+ever”引導讓步狀語從句,意為“無論……”,可與“no matter+特殊疑問詞”結構互換。4.whether... or...引導讓步狀語從句時意為“不論……還是……”。考點3 條件狀語從句1.條件狀語從句的常見引導詞:if、unless(=if... not)、so/as long as (只要)、on condition that (條件是)、if only、provided that (如果)、in case (萬一;如果)、suppose/supposing that (假設;如果)、assuming that(假定;假設)、unless等。2.條件狀語從句的時態:在條件狀語從句中,常用一般現在時表示將來的含義;用現在完成時表示即將完成的情況;用一般過去時表示過去將來的含義。考點4 地點狀語從句地點狀語從句通常由where、wherever引導。例題:1. Molai built at the top of each sapling (幼樹)a bamboo platform, __________ he placed earthen pots with small holes to collect rainwater.2. ―Tom doesn't seem so enthusiastic as he was two years ago.―Yes. He's really reached a point in his career ___________he has to decide what to do next.3. I write my motto _______I can see it easily.考點5 原因狀語從句because: 表示直接原因,語氣較強,能回答由why提出的問句as :常表示顯而易見的原因,語氣較輕in that(因為)、now that(既然;由于)、since(既然):表示雙方都知道的原因,語氣較弱for : 表示推斷的理由,是對前面分句的內容加以補充和說明。例句:As Monday is a national holiday, all goverment offices will be closed.It rained last night, for the ground is wet this morning.考點6 結果狀語從句1.2.3. so thatso +adj./adv.adj.+a/an+可數名詞單數many/much/few/little +名詞+that 從句such ++that 從句adj. +a/an+可數名詞復數/不可數名詞a/an +adj.+可數名詞單數a lot of/lots of + 名詞注意:當“so+adj./adv.”或“such+n.”置于句首時,主句要部分倒裝。例句:So excited am I that I vannot wait to do sth.考點7 目的狀語從句in order that/so that 表示“以便……;為了……”,它們引導的狀語從句中常用情態動詞in case (that)表示“以防出現某種情況”例句:(2023·全國甲卷)It's a surprise they haven't managed to grow square ones so that they can pack them easily. 令人驚訝的是,他們沒有設法種植方形的,這樣他們就可以方便地把它們打包。考點8 方式狀語從句引導方式狀語從句的有as if、as though等。as if/as though引導的方式狀語從句與事實相反時,從句通常用虛擬語氣;與現在的情況相反時,用一般過去時;與過去的情況相反時,用過去完成時;與將來的情況相反時,用“would/could/might+動詞原形”。狀語從句的省略狀語從句的省略,是高考中經常考察的點。狀語從句什么時候可以省略?當從句的主語和和主句的主語一致,并且從句謂語中含有be 動詞時,可以將主語和be 動詞同時省掉。例句: when he was reading, he took notes.When reading, he took notes.Though she was tired, she continuing walking.Though tired, she continuing walking.歷年高考真題2021天津卷 _____ our hobbies, the Internet can connect us with others.答案:Whatever解析:whatever表示“無論什么”,引導讓步狀語從句。2022全國甲卷)The disagreement was _____ sharp that neither he nor I knew how to settle it.答案:so解析:so...that...結構表示“如此……以至于……”(2022全國乙卷)_____ you ride a bicycle, you don't use petrol.答案:If/When解析:考查時間/條件狀語從句,表示“當/如果騎自行車時,你不用汽油”。4. Molai built at the top of each sapling (幼樹)a bamboo platform, __________ he placed earthen pots with small holes to collect rainwater. (2020,全國英語新高考卷Ⅰ,完形填空)【答案】where,地點狀語從句,句意“莫萊(Molai)在每個幼樹的頂部都用竹子搭建了一個平臺,在那里他放了一些有小孔的土鍋來收集雨水。”5. The tests show that the social environment is extremely influential ________ we’re making decisions. (2020,全國英語新高考卷Ⅰ,D)【答案】when, 時間狀語從句,句意“測試表明,在我們做出決策時,社交環境具有極大的影響力。”6. They kept their collection at home until it got too big or ___________ they died, and then it was given to a museum. (2020,全國英語新高考卷Ⅰ,單詞填空)【答案】until,時間狀語從句,句意“他們把收集物放在家里,直到它體積變大或者沒有用處,然后再把它給博物館。”7. That willpower bore fruit ________ Jennifer graduated from University of Wisconsin-Eau Claire and became the first in her large family to earn a bachelor’s degree. (2020,全國英語新高考卷Ⅰ,B)【答案】when,時間狀語從句,句意“當詹妮弗(Jennifer)畢業于威斯康星大學歐克萊爾分校(University of Wisconsin-Eau Claire)時,并成為她的大家庭中第一個獲得學士學位的人,這一意志力展現出了成果。”8. _________ the little mermaid hadn’t come to his assistance,the young prince would have drowned.【答案】If 根據句意“如果小美人魚沒有來幫助他,那位年輕的王子會淹死了。”條件狀語從句用if感謝您的觀看 展開更多...... 收起↑ 資源預覽 縮略圖、資源來源于二一教育資源庫