What is the topic of Unit 8?

Which word is the antonym of "public"?

Choose the word to complete the sentence: It's a great _______ that people can communicate with not only traditional ways but also some new technology devices, like smart phone or computer.

Which word means: travel to a new place to learn about it.

NASA is a _______organization in America.

Write one of the purposes of an author

What is the purpose of this author: "Harry Porter" is the best book I read before, it's not only shows readers a magic world and it also teaches us how to make good friends and love your families. You must read it this holiday, I'm sure you will love it.

If you need your listeners believe your opinion, you must use some examples or facts to _______ it.

Now, there is no dinosaur________ in the world, but you can still see the fossils in museums.

The police officers need _________ to prove someone is guilty or not, or it's hard to send him or her to jail.