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Shall I open the window? 要我把窗子打開嗎？

(2) 用于陳述句中表示允諾、告誡、警告、威脅、命令、規(guī)定、必然性等(可用于各類人稱)。如：

You shall suffer for this. 你會(huì)為此事吃苦頭的。(表威脅)

Each competitor shall wear a number. 每個(gè)參賽者要戴一個(gè)號(hào)碼。(表規(guī)定)

You shall hear everything as soon as you come. 你一來就可聽到所有情況了。(表允諾)

請(qǐng)做以下試題(答案均選 shall)：

(1) “I promise that she _____ get a nice present on her birthday.” “Will it be a great surprise to her?”

A. should                                                 B. must

C. would                                                  D. shall

2. You _______ pay too much attention to your reading skill, as it is so important.

A. cannot                                                 B. shouldn’t

C. mustn’t                                                D. needn’t

【陷阱】幾個(gè)干擾項(xiàng)均有可能誤選。

【分析】最佳答案選A。cannot…too…是英語中一個(gè)十分有用的表達(dá)，意為“不可能太……，無論怎樣……也不算過分，越……越……”。如：

You can’t be too careful. 你越仔細(xì)越好。

You can’t praise the too much. 這本書值得大加贊揚(yáng)。

We cannot work too much for the people. 我們?yōu)槿嗣褡龉ぷ魇遣豢赡茏鲞^頭的。

A woman cannot have too many clothes. 女人買的衣服再多也不算多。

注：有時(shí)也可用 can never, impossible 等與too連用來表示類似意思。如：

It is impossible to get there too soon. 去那兒越早越好。

3. “Is John coming by train?” “He should, but he _____ not. He likes driving his car.”

A. must                                                    B. can

C. need                                                    D. may

【陷阱】可能誤選B或C。

【分析】最佳答案為D。may 表推測，may not 意為“可能不(會(huì)坐火車來)”。句中的 He should 為 He should come by train 之省略，由于其后出現(xiàn)轉(zhuǎn)折連詞 but，說明語意有變化，再結(jié)合下文的 He likes driving his car，便可決定此題選D。注意，不能選B，因?yàn)?/FONT>can表示推測時(shí)通常不用肯定陳述句。