Vocabulary
Vocabulary II
Grammar
Grammar II
100

atmosphere

a mixture of gases that surrounds any planet


100

narrow

having a small distance from one side to another

100

Complete the sentences with an appropriate pronoun.

Have you seen an elephant? Yes, I've seen _________ in a zoo, but not in the wild.

one

100

Complete the second sentence so it means the same as the first, using the word in the bracket.

How was your trip to South Africa? Did you see ____________ interesting?

anything

200

process

a series of changes that happen naturally


200

organism

a single living plant, animal, virus, etc.


200

Complete the multi-word verb using the correct preposition.

I can't keep ____ with the other students in maths.

up

200

Complete the multi-word verb using the correct preposition.

You need sleep. You can't do _________ sleep.

without

300

compound

a chemical that combines two or more elements


300

be exposed to

to not be protected from something harmful


300

Complete the multi-word verb using the correct preposition.

The teacher always tells us ______ if we talk in class.

off

300

Complete the sentences using the comparative or superlative form of the adverb in the bracket.

On safari, you have to get up ______________ (much, early) than usual.

much earlier

400

frequency

the number of times that a wave is produced within a particular period, esp. within one second


400

emit

to send out gas, heat, light or noise


400

Complete the second sentence so it means the same as the first, using the word in the bracket.

Marek doesn't work nearly as hard as the others. (much): The others _______________________ .

The others work much harder than Marek.

400

Complete the second sentence so it means the same as the first, using the word in the bracket.

Yesterday we couldn't see the animals as clearly as today.

(more) Today ___________________________ .

Today we could/can see the animals more clearly than yesterday.

500

enzyme

a chemical substance produced by living cells which makes particular chemical reactions happen in animals and plants


500

molecule

the simplest unit of a chemical substance, usually a group of two or more atoms

 

500

Complete the second sentence so it means the same as the first, using the word in the bracket.

Kareem drives more quickly than Amal.

(as) Amal ______________________________ .

Amal doesn't drive as quickly as Kareem.

500

Complete the sentences using the comparative or superlative form of the adverb in the bracket.

Elephants run ______________ (much, slow) than Cheetahs.

much more slowly

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