when引导状语从句时的注意点是什么？
when 引导时间状语从句时，要用一般现在时代替将来时，也就是when引导的从句不能用将来时。如：
Your mother will blame you when she sees this mess.
当你母亲看到这混乱的局面时她会责骂你的。
2. when引导的从句可以和主句同时用一般现在时，表示一般的情况。如：
She smiles when you praise her.
每当你夸她的时候她就笑。
3.when的固定句型：
was/were doing +when（引导的句子用过去式）：正在做什么的时候，发生了什么
when （引导的句子用过去进行时） +一般过去时 ：做什么事情的时候，另一件事情正在进行
温馨提示： 对于上面俩句，使用过去式的动词是短暂性动词
was/were about to do +when（引导的句子用过去式）：正打算做什么时，什么发生了
had done +when（引导的句子用过去式）：刚刚完成了什么，另一件事情发生了
例如：
Today, I was walking when an old woman approached and asked for some loose change for a cup of tea.
今天我在路上走，一个老太太过来问我能不能给她一点零钱去喝茶。
The morning passed rapidly and Frank was about to leave when he noticed a largepacking case lying on the floor.
上午很快过去了，弗兰克正准备离去，突然看见地板上放着一只体积很大的货箱。
The newsreel had almost finished when I went to the cinema.
我到电影院的时候新闻片几乎要演完了。
绛旓細when 寮曞鏃堕棿鐘惰浠庡彞鏃讹紝瑕佺敤涓鑸幇鍦ㄦ椂浠ｆ浛灏嗘潵鏃锛屼篃灏辨槸when寮曞鐨勪粠鍙ヤ笉鑳界敤灏嗘潵鏃躲傚锛歒our mother will blame you when she sees this mess.褰撲綘姣嶄翰鐪嬪埌杩欐贩涔辩殑灞闈㈡椂濂逛細璐ｉ獋浣犵殑銆2. when寮曞鐨勪粠鍙ュ彲浠ュ拰涓诲彞鍚屾椂鐢ㄤ竴鑸幇鍦ㄦ椂锛岃〃绀轰竴鑸殑鎯呭喌銆傚锛歋he smiles when you praise he...
绛旓細when寮曞鐨勬椂闂寸姸璇粠鍙ュ彲浠ユ帴涓娈垫椂闂存垨鑰呬竴涓叿浣撶殑鏃堕棿鐐锛屼粠鍙ョ殑璋撹鍔ㄨ瘝鍙互鏄欢缁х殑鍔ㄨ瘝锛屼篃鍙互鏄灛鏃跺姩璇嶃倃hen琛ㄧず鈥滃綋鈥︽椂鈥濃滃湪鈥︽椂鈥濓紝鎴"灏卞湪閭ｆ椂"銆傘1銆戝湪杩囧幓锛寃hen浠庡彞鍜屼富鍙ョ殑鍔ㄤ綔鍏堝悗鍙戠敓 瑙ｉ噴锛氳〃绀哄湪杩囧幓锛屼富鍙ュ拰浠庡彞鍖呭惈鐨勫姩浣滃厛鍚庡彂鐢熶簡锛屾垨鑰呬富鍙ユ垨浠庡彞鐨勫姩浣滃厛鍙戠敓銆傚彞瀛愮粨鏋...
绛旓細鏃堕棿鐘惰浠庡彞寮曞璇嶄竴銆when锛堝綋鈥鐨勬椂鍊锛寮曞鐨勭姸璇粠鍙锛屼竴鑸兘琛ㄧず涓诲彞鍜屼粠鍙ョ殑鍔ㄤ綔鏄悓鏃舵垨鑰呭厛鍙戠敓鐨勩 姣斿锛欼 feel so happy when you come to visit me. 褰撲綘鏉ョ湅鎴戠殑鏃跺欐垜寰堥珮鍏淬 You should knock the door when I close door in my bedroom. 褰撴垜鎶婂崸瀹ら棬鍏充笂锛屼綘搴旇鏁查棬鐨勩備簩...
绛旓細娉ㄦ剰:鏈夋椂when寮曞鐘惰浠庡彞鏃,鍦ㄤ笉褰卞搷鏂囨剰鐨勬儏鍐典笅寰寰灏嗕粠鍙ヤ腑鏌愪簺鎴愬垎鐪佸幓,鍥犳,甯稿父浼氬嚭鐜颁互涓嬬粨鏋:1. When+鐜板湪鍒嗚瘝銆備緥濡:When sleeping, I never hear a thing. 鐫¤鏃,鎴戜粈涔堥兘鍚笉瑙併2. When+杩囧幓鍒嗚瘝銆備緥濡:This dictionary will look nice when printed. 杩欐湰璇嶅吀鍗板嚭鏉ユ椂浼氬緢濂界湅銆...
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绛旓細褰when寮曞鏃堕棿鐘惰浠庡彞 1.閬靛惊涓诲皢閲嶇幇鍘熷垯銆2.鍓嶅悗鏃舵佽涓鑷淬侷 will call you when he comes back.He could swim when he was three years old.
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绛旓細1銆when寮曞鐨鏃堕棿鐘惰浠庡彞澶氱敤涓鑸椂鎬併備緥鍙ワ細I was doing my homework when my mother came back home yesterday evening.鏄ㄥぉ鏅氫笂濡堝鍥炲鐨勬椂鍊锛屾垜姝ｅ湪鍋氬搴綔涓氥2銆亀hile寮曞鐨勬椂闂寸姸璇粠鍙ュ鐢ㄨ繘琛屾椂鎬併備緥鍙ワ細While they were talking , the bell rang.姝ｅ湪浠栦滑璋堣瘽鐨勬椂鍊欙紝涓婅閾冨搷浜嗐
绛旓細涓嶈兘鐩存帴鎺ュ彞瀛 when it comes to鐨則o鍚庨潰涓嶈兘鐩存帴鍔犲彞瀛愶紝浣嗘槸when...浣滀负涓涓鐘惰浠庡彞锛屾槸蹇呴』瑕佹湁涓诲彞鐨勩傛瘮濡 when it comes to inflation, the critical issue is to control consumer and producer prices.璇村埌閫氳揣鑶ㄨ儉锛屽叧閿棶棰樻槸鎺у埗娑堣垂鑰呭拰鐢熶骇鑰呬环鏍笺
