⑴ this / that / these / those / last / next / a / every / each等詞構成的時間短語,前面不用任何介詞。如：Every year travellers from abroad come to visit Pingyao.(每年都有國外的游客來游覽平窯鎮)/ He had a bad cold that week.(那個星期他患重感冒)

⑵ for有時用來引出動詞不定式的邏輯主語,常翻譯成"對于…而言"。如：It's too hard for me to finish the work in only one hour.(讓我在區區一個小時內完成這項工作太難了)/ The house is big enough for 10 men to live in.(房子夠大的可以容10個人住)

⑶ of有時用來表示后面的人物正好是前面的表語的邏輯主語。如：It's very nice/kind of you to do so.(你這么做真是太好了)

⑷ 介詞有時會與它的賓語分離,而且賓語前置。

① 當賓語是疑問詞時。Who are you talking about?(你們在談論誰?)

② 賓語在從句中當連接詞時。He has a younger brother who he must take good care of.(他有 一個需要他照顧的小弟。) / Do you know who our teacher is talking with over there?(你知道我們的老師在那邊和什么人談話嗎?)

③ 動詞不定式作定語且該動詞為不及物動詞,后面有介詞。I finally found a chair to sit on.(我 最終找到了一張椅子坐。)

(5) 記住一些固定詞組：arrive at/in(到達…),on foot(步行),not…at all(根本不),to the north of(在…以北),in the east of(在…的東部),in the night(在夜間),at night(在晚上),be afraid of(害怕…),be full of(充滿/ 裝滿….),be filled with(充滿/ 裝滿….),be good/bad for(對…有益/有害),be made of(由…做成),be made from(由…制造),play with(玩耍……),look out of(朝…外面看),at the end of(在…末梢/結束時),by the end of(不遲于…/到…末為止),with the help of或with one's help(在…的幫助下),look after(照料…),look for(尋找…),on a bike(=by bike)騎車, help sb. with(幫某人做…),get on (well) with(與某人相處[融洽]),等等。

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