例1. We discovered (that)he told a white lie. (當動詞discover之受詞—that可省略) 例2. We are sorry (that)he told a white lie. (當形容詞補語—that可省略) 例3.Thathe told a white lie is obvious. (當be動詞is的主詞—that不可省略) 例4. It is obvious/Chances are (that)he told a white lie. (當主詞it/chances補語—that可省)
例1. We found out (the fact)thathe told a white lie. (that經常不省略) 例2. (The fact)thathe told a white lie is understandable. (the fact 可省略，that不省略) 例3. His parents reduced his allowance due to the factthathe did poorly on exams.
例1. The waiter (who/that) I complained about was laid off. 例2. The coveragewhich/thatconcerns the event is found online. 例3. Who is the greatest manthat's ever lived? 例4. I still remember the date (when/that/on which) we first met each other. 例5. I don't know any place (where/that/at which) you can find an i-Pod. 例6. The reason (why/that/for which) I missed out the fun was that I forgot it started at 6:00. 例7. The way (how/that/in which) she laughs is weird. How she laughs is weird.
結果子句so/such … that 與表目的in order that
例1. It is so noisy a place (that) I can't hear you. (=toonoise for metohear you.) 例2. Last Sunday was such a chilly day (that) we decided to stay home. 例3. We need to ask for a wake-up call in orderthat/so (that) we may see the sunrise.
名詞子句連接詞that 不可省略的位置-- (動詞前) 主詞位置。
句法功能字-- 虛詞it (名詞子句、不定詞片語、動名詞片語「後移」之分身)
指涉（後移的）that-/wh - 名詞子句，或 if、when副詞子句
例1.That Jack's dog diedleft him depressed. (o) →It left Jack depressedthat his dog died. (o) 例2.Whether a movie will be a hit or notdepends on the cast and director. (o) →Itdepends on the cast and directorwhether a movie will be a hit or not. (o) 例3. The host thought a pitythat so few people came. (x) → The host thoughtita pitythat so few people came. (o) (that不省略) 例4. How strangeitisthat nobody is here! 例5.If you plan in detail before going on a trip,ithelps you to avoid unexpected trouble.
例1.To teachis a pleasure. (o) →Itis a pleasureto teach. (o) 例2. The cell phone makesto communicate on the movepossible. (x) → The cell phone makesitpossibleto communicate on the move. (o)
指涉「後移的」動名詞片語(主詞/受詞較長者 → 移至補語之後，it補原主詞/受詞遺缺)
例1.Making new friendsis not easy. (o) →Ithas been nicetalking to you. (o) 例2. You will findworking hereexciting. (o) → You will finditexcitingworking here. (o)
片語make (it) clear that-子句，但 bear in mind that-子句
例1. The president made (it) clear thathe was not stepping up the tension. 例2. Please bear in mindthatyou are not alone.