Is it good to search what every word means when reading a book? When you come across 10-20 words you don't know in each page
If you can't understand the meaning of the word in the context of the sentence then I would look it up to help you understand what you are reading. If you think you know what might be meant then just write it down and look it up later.
Write down the words as you come to them... then at the end of the page or passage, look up the words you don't know. Then re-read the passage. You will understand and retain it much better that way.
Yup! It raises your vocabulary. And there's nothing fun-er than using a word in a sentence that no-one around you knows. They look at you like you're an alien :)
Yes. Especially then.
yup. helps extend your vocabulary :)
yes! you want to be able to understand what you're reading!