作者：丁楠
一、主語 + doesn't work. 不工作，不運(yùn)轉(zhuǎn)。
【考點(diǎn)說明】句中work為不及物動(dòng)詞，表運(yùn)轉(zhuǎn)、工作，助動(dòng)詞應(yīng)隨主語的單復(fù)數(shù)作相應(yīng)變化。
I bought this radio here, but it doesn't work now.我在這兒買的這臺(tái)收音機(jī)，但現(xiàn)在不響了。
Something is wrong with the computer, and it doesn't work.這臺(tái)電腦出了毛病，無法正常運(yùn)轉(zhuǎn)。
【知識(shí)串聯(lián)】 at work意為"在工作中；（機(jī)器）在運(yùn)轉(zhuǎn)"；in work意為"有職業(yè)"，與out of work相對(duì)。
This machine is at work.這臺(tái)機(jī)器正在運(yùn)轉(zhuǎn)。
I'm glad to hear that you are in work. 我很高興聽到你有工作。
二、 I don't think so. 我不這么認(rèn)為。
【考點(diǎn)說明】該句型為對(duì)某一觀點(diǎn)的否定判斷，so代表上文提及的觀點(diǎn)。
-Do you think it will rain this afternoon? 你認(rèn)為今天下午會(huì)下雨嗎？
-I don't think so. 我不這么認(rèn)為。
-Will she be late? 她會(huì)遲到嗎？
-I don't think so. 我不這么認(rèn)為。
【知識(shí)串聯(lián)】 I think not. 意為"我不這么認(rèn)為"，與I don't think so.用法相同。
-Is she a thief? 她是一個(gè)小偷嗎？
-I think not. 我不這么認(rèn)為。
三、How many ... by ... is it from ...to ... ? 乘......從......到......有多少......？
【考點(diǎn)說明】 該句型為詢問兩地間的距離，How many后面接metres, miles, kilometres等表距離的復(fù)數(shù)名詞；by后接road, bus, train, sea, water, plane, air等表交通工具的名詞（不用不定冠詞或數(shù)詞修飾，也不用復(fù)數(shù)形式），如果表步行應(yīng)用on foot; from與to后面接兩個(gè)地點(diǎn)名詞。
How many kilometres by train is it from Shanghai to Beijing? 從上海到北京乘火車有多少公里？
How many miles by air is it from London to Paris? 從倫敦到巴黎乘飛機(jī)有多少英里？
How many metres on foot is it from the zoo to the park? 從動(dòng)物園到公園步行有多少米？
【知識(shí)串聯(lián)】
1. How far by ... is it from ... to ... ?乘......從......到......有多遠(yuǎn)？句中by, from, to的使用方法與其在How many ...by ... is it from ... to ... ? 句型相同。
How far by sea is it from Shanghai to Dalian? 從上海到大連乘船有多遠(yuǎn)？
How far by bus is it from Changsha to Wuhan? 從長沙到武漢乘汽車有多遠(yuǎn)？
2. How long does it take by ... from ...to ...?乘......從......到......需多長時(shí)間？該句型間接詢問兩地的距離。
How long does it take by train from Guangzhou to Haikou?從廣州到海口乘火車需多長時(shí)間？
How long does it take by air from Changchun to Lanzhou?從長春到蘭州乘飛機(jī)需多長時(shí)間？