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please explain

Hi Paul,

1. He is of the opinion that the sensors and computer systems used in the smart cars will be more efficient than human.

2. He argues that because smart cars are programmed to take very direct routes, owners will not need to spend as much money on repairs and replacement parts

3. The key to learning as quickly as a child may be to simply take on certain childlike attitudes...

Question:

Sentence 1. Why writer use a word " of " after to be "is"?

Sentence 2. why writer uses word " because" after word "that"?.

Sentence 3. from " to learning as quickly............... is this a preposition
phrase?.

Thank you

Re: please explain

mike
Hi Paul,
1. He is of the opinion that the sensors and computer systems used in the smart cars will be more efficient than human.

Why does the writer use athe word "of" after to be "is"?

PM: The preposition phrase "of the opinion" is something of an idiom, with a meaning roughly that of "believe": "he believes that the sensors …". Notice that the PP is complement to "is", which means the PP "of the opinion that the sensors and computer systems used in the smart cars will be more efficient than human" is describing a belief held by the subject "he".

mike

2. He argues that because smart cars are programmed to take very direct routes, owners will not need to spend as much money on repairs and replacement parts.
Why does the writer uses the word " because" after theword "that"?


PM: "That" is just a meaningless subordinator. If you remember from my reply to you yesterday, it’s optional. Here it is introducing a content clause which contains an adjunct, the preposition phrase “because smart cars are programmed to take very direct routes”. That preposition phrase beginning with "because" gives the reason that owners will not need to spend as much money on repairs and replacement parts”.

mike

3. The key to learning as quickly as a child may be to simply take on certain childlike attitudes...

From " to learning as quickly............... is this a preposition.

PM: Yes, "to" is a preposition which has the clause "learning as quickly as a child may be to simply take on certain childlike attitudes..." as its complement.


PaulM