This is the last time that I shall give you a lesson
I shall give you a lesson是time的同位語,這句是同位語從句,同位語從句的引導(dǎo)詞是不可以省的
分析：
首先四樓和六樓的,強(qiáng)調(diào)句的句型是it is ...that/who...,而這里是that is...因此決不是強(qiáng)調(diào)句
而且,即使這句話是it is the last time that I shall give you a lesson.這也不是強(qiáng)調(diào)句.我們知道強(qiáng)調(diào)句中強(qiáng)調(diào)的東西在原句中是擔(dān)任成分的,the last tiam明顯在I shall give you a lesson 中不承擔(dān)任何成分
然后,一樓的,表語從句在句子中充當(dāng)表語的成分,其典型例句是
My idea is that we'll go together.
That is what we should do.
明顯的that I shall give you a lesson在句中不做表語,因此這絕不是表語從句
還有,表從和賓從是有本質(zhì)差別的
麻煩不要在這里誤人子弟
我們可以看到This是主語is謂語 the last time 是表語,因此that I shall give you a lesson 絕不是主從或表從或賓從,很明顯,這也不是狀語從句
然后我們可以通過語義分析出I shall give you a lesson是補(bǔ)充說明time的,此時(shí)就有兩種可能1定語從句2同位語從句,我們知道that在定從中擔(dān)任成分,在同從中不擔(dān)任,典型例句
定從：The news (that) you told me last week is not ture.這里的that可省略
同從:The new that the leader will come here is not ture
再回到你的句子,我們可以根據(jù)從句的結(jié)構(gòu)和句意發(fā)現(xiàn)time在I shall give you a lesson 中是不擔(dān)任成分的,所以是同位語從句
同位語從句的引導(dǎo)詞是不可以省略的