13.1 祈使句結(jié)構(gòu) | ||
? | 祈使句用以表達(dá)命令,要求,請(qǐng)求,勸告等。 1) 祈使句有兩種類(lèi)型,一種是以動(dòng)詞原形開(kāi)頭,在動(dòng)詞原形之前加do (但只限于省略第二人稱(chēng)主語(yǔ)的句子)。 Take this seat. Do be careful. 否定結(jié)構(gòu): Don't move. Don't be late. 2) 第二種祈使句以let開(kāi)頭。 Let 的反意疑問(wèn)句 a. Let's 包括說(shuō)話者 Let's have another try,shall we / shan't we? = Shall we have another try? b. Let us 不包括說(shuō)話者 Let us have another try,will you / won't you? = Will you please let us have another try? 否定結(jié)構(gòu): Let's not talk of that matter. Let us not talk of that matter. |