如此一來grammar point · tier 2 · 如此一來 this being so, then … (formal: the consequence the prior situation now unlocks)
Takes the situation just stated as a given and projects the consequence it now makes possible; the written-register form of 這樣一來.
字源 FORM what the parts do
如 sets a woman (女) beside a mouth (口) — 說文 reads it as going along with what is spoken, hence 'to be as, like this'. 此 stops a foot (止) where a person (匕) stands, pointing back at the spot just named — things being thus. 來 is the graph of wheat borrowed long ago to write 'come', and it lends its come-forward sense; 一 marks it as a single move. Together: things standing this way, and one consequence comes forward.
故事 STORY a scene to remember it by
A latch is thrown on a sluice gate. The water, held back till now, runs through the one open channel and reaches the field below.
字源記憶法
框 · Frame
[move / situation]，如此一來，[the consequence it now enables]
觸 · Trigger
You have stated a situation or move in formal register and want to say what it now makes possible.
序 · The move
1State the situation or move first as its own settled clause.Is there a finished setup for 此 to point back at?
2Place 如此一來 at the head of the next clause, set off by commas.Does it sit between the setup and the consequence, not inside either?
3State the consequence the setup now enables.Does this follow FROM the setup? Swapping the clauses must break the sense — setup, then 如此一來, then result, never the reverse.
例 · Examples
1現在經濟the economy逐漸gradually, step by step好轉to take a turn for the better，如此一來this being so, then，工作機會job opportunities就會增加to increase。
The economy is gradually improving now; this being so, job opportunities will increase.
Same connector, same move: take the prior situation as given and project its consequence. 如此 is the written-register pointer (essays, reports, formal speech); 這樣 is the everyday one. Swap by register, not by meaning.
因此 leans on the prior clause strictly as a cause and points back to it — for this reason. 如此一來 takes the prior clause as a settled state or move and projects what it now lets happen; the link is a consequence the situation unlocks, looser than named cause-and-effect.
於是 chains the next event in a narrative — and so, the next thing happened. 如此一來 weighs the prior situation as a condition and draws out what follows from it. 於是 moves the story along; 如此一來 reasons from a state to its consequence.
如此一來他很高興。 ✗ → 他很高興。 ✓ (如此一來 needs a prior setup to point back at, not a bare opening statement)
因為下雨，如此一來我沒去。 ✗ → 下雨了，如此一來我就沒去了。 ✓ (如此一來 already carries the situation-to-consequence link; pairing it with 因為 doubles it)
經濟好轉，如此一來我很喜歡。 ✗ → 經濟好轉，如此一來工作機會就會增加。 ✓ (the second clause must be a consequence the setup enables, not an unrelated feeling)
English 'this way' / 'so' can float in front of any next sentence and need no settled setup; learners drop 如此一來 before a bare statement and forget it must point back to a situation already laid down. Its register is also formal — in casual speech 這樣一來 is the natural choice.