高二必修五Unit 3英语单词及词汇解析
常言说:万事开头难。还常说,能有一个好的开头,就是成功的一半;即使不能有一半的成功,也为今后打下好的基础。进入高一学好英语打好基础很重要，以下是小编整理的关于人教版高中英语必修四单词及语言点总结：Unit 3 Life in the future，旨在提供综合运用所需材料!
高中英语必修五单词及语言点总结
Unit 3 Life in the future
Word usage
1. overcome v 1) to control a feeling or problem that prevents you from achieving
something
2) to fight and win against someone or something
3) to have such a strong effect on someone that they become weak
The learner of a second language has many obstacles to overcome.
He was overcome by the heat.
He was overcome with astonishment.
I believe truth will overcome.
2. constantly adv. all the time or very often
She is constantly changing her mind.
As I walked through the town, I was constantly reminded of my childhood
3. remind vt. 1) to make someone remember something that must do
2) to make someone remember someone that they knew
I reminded Gerald of his promise.
The story reminds me of an experience I once had.
The view reminded her of Scotland
4. unsettled adj. 1) not yet settled
2) changeable, especially likely to become worse
Conditions in the coastal towns were unsettled after the hurricane
A large part of the southwestern United States is unsettled desert.
The argument remains unsettled.
5. similar adj. 1) Almost the same but not exactly the same
2) be similar to
His problem is similar to yours
My view is similar to yours.
They had similar views.
6. previous adj. 1) Happening or existing before the time
2) done before the right or sensible marriage
I remember you mentioned the same thing on a previous occasion
Don't be too previous about refusing.
7. uncertain adj. 1) not sure or feeling doubt
2) likely to change, often in a way that is bad
3) not definite or decided
The date of his departure is uncertain.
I am still uncertain whether he will come today.
We didn't have the picnic because the weather was uncertain
8. transport vt. 1) to take goods ,people etc. from one place to another in a vehicle
2) transport sth/to to
The goods will be transported to Tokyo by air.
She was transported with joy by the good news.
British prisoners used to be transported to Australia.
9. confuse vt. 1) to make someone feel that they can’t think clearly
2) to think wrongly that one person
They confused me by their conflicting advice.
You confused Australia with Austria.
His granddaughter confused the papers on his desk.
10. swiftly adv. 1) quickly 2) be swift to do sth
The capacity to respond swiftly to market changes
He is swift to take steps.
I noticed a swift change of expression in his face.
11. switch n. 1) an apparatus for stopping the flow of an electric current
2) a complete unexpectedly change
v. 3) to change or exchange
You pressed the wrong switch.
There's been a switch in our plans.
He switched the light on.
Hang on, please. I'll switch you to the manager.
12. optimistic adj. 1) believe that good things will happen in the future
2) thinking that things will be better
The expert are optimistic that we will succeed
They are being over-optimistic if they think that car make an 800 mile trip.
13. persuade vt. to make someone believe something, convince
She persuaded me into buying it.
The salesman persuaded us to buy his product.
How can I persuade you of my sincerity?
14. amazing adj. Causing great surprise or wonder
It was amazing that the boy was able to solve the problem so quickly.
What an amazing film!
15. consider vt. to think of the state way, regard as
I've begun to consider what to do next.
We're considering moving to Seattle.
Have you considered that he is only a little boy?
Michael is considered an expert in computer science.
16. extraordinarily adv. Very strangely
She is an extraordinarily beautiful girl.
I take an extraordinarily long time.
Useful expressions
1. depend on 1) to change according to what else happens
2) to need the support, help, or existence of someone else
You can depend on him.
Health depends on good food, fresh air and enough sleep.
The price depends on the quality.
2. fill in 1) to write all the necessary information on an official document
2) tell sb news
3) fill in time
Fill in the blanks with suitable words.
Steve is ill. Can you fill in for him?
We have got some time to fill in before the show, let’s go for a drink.
3. make sure 1) to find out if something is true or to check that something
has been done.
2) to do something so that you can be certain of the result.
You must make sure of the time and place.
Ben made sure of winning by betting on all the horses.
4. as well as: in addition to something else
They will travel by night as well as by day.
He speaks Spanish as well as English and French.
5. have an effect on : have an impact on sth; influence
This had a great effect upon the future of both mother and son.
Inflation is having a disastrous effect on the economy.
6. speed up: to cause to move, go or happen faster
They have speeded up production.
Production of this new model must be speeded up.
7. well-known adj. Known by a lot of people; be well known for
It’s well-known fact that smoking can cause lung cancer.
As is well known, Sun Nan is a very famous singer.
8. sweep up: clean sth away
She was left to sweep up after the party.
Harriet swept the child up in her arm and stormed out.