Using Devices & the Internet
Science & Research
Devices
Comparatives & Superlatives
Need to / have to
100

Use the internet to talk to and see someone else.

Make a video call

100

Find solutions to difficulties.

Solve problems

100

You can keep a lot of information in this device that is not part of your computer.

USB drive

100

What's the general rule to form comparative adjectives with one syllable.

Add -er at the end of the adjective + than

100

We use need to to express something is ... 

Necessary

200

If a bank or social media provider does this, they stop your account form working because you have done something wrong.

Block your account

200

To do the things in the order and time previously accorded and set in a timetable.

Follow a schedule

200
You can keep here a lot of energy to feed your devices instead of using a plug. 
Power bank
200

What's the general rule to form the superlative adjectives with one syllable.

the + Add -est at the end of the adjective.

200

What's the correct form of the verb after need to?

bare infinitive ( without to )

300

Add a small device with extra memory to your computer.

Connect a drive

300

When you have a problem and you think of different ways to solve it.

Look for solutions

300

It's similar to a smart watch but you use it to track your health 

Fitness tracker
300

What's the general rule to form comparative adjectives with two or more syllables.

more + adjective + than

300

What's the correct form to create the negative of need to?

Use the auxiliary do (don't/doesn't/didn't) 

400

Your computer stops working; often you see a blue screen & a warning.

Your computer crashes

400

It's another way to call the investigation.

Do research

400

You can use its screen to read a lot of books and watch videos among other activities.

Tablet

400

What's the general rule to form superlative adjectives with two or more syllables.

the most + adjective

400

We use have to to express...

Obligation

500

There's a problem that means the screen on you device won't change.

The screen freezes

500

When you gather information in a research you...

Collect data

500

You can use it to storage and use a lot of literary work of your favorite authors.

E-reader

500

What's the structure to compare two adjectives on the same level 

as + adjective + as

500
We use the negative form of have to to express...

Something is not necessary.