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WANG CHUN Posted 21 years ago
Grammar

The usage of cleft sentence

Hello,
Can you help me check these cleft sentences
Thank you for your help


It is when forests are protected from logging that photosynthesis can operate.

It is when mountainous lands are damaged for business that people’s lives are threatened with massive landslide.
  

Top answer

Hello **** Chun! Strictly grammatically speaking, Your sentences look right to me. Yet, the construction doesn't sound English to my ears...

  • Hello **** Chun!
  • Strictly grammatically speaking, Your sentences look right to me.
  • Yet, the construction doesn't sound English to my ears...
  • Why don't you try: 1.
  • Only when/if forests are protected from logging can photosynthesis operate.
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5 Answers
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Hello **** Chun!

Strictly grammatically speaking, Your sentences look right to me.
Yet, the construction doesn't sound English to my ears...
Why don't you try:
1. Only when/if forests are protected from logging can photosynthesis operate.
2. When mountainous lands are damaged for business, (then) people's lives are ...

The construction "it is when ... that
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hello pieanne
I am glad to see your answer.
What do you think of two sentences

It is only forests are protected from logging can photosynthesis operate.

It is after mountainous lands are damaged for business that people’s lives are threatened with massive landslide
.
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Your first sentence is not correct at all... Emotion: crying
Your second is grammatically correct, but doesn't really sound like native Engli
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Hello **** Chun

You can make an it-cleft sentence form of 'It is *** that ...' if and only if '***' behaves as a syntactic unit in the original sentence. The it-cleft is usually applied to a word or a phrase in a single-clause sentence, and rarely applied to a subordinate clause of a complex sentence. However somehow the structures "It is only when ... that ..." and "It is only where...
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Hello WC

Further to Pieanne's and Paco's comments, I would offer the following version of #2:

'It is when mountainous regions are damaged by commercial activities that people’s lives are threatened by massive landslides.'

MrP

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