First Conditional

First Conditional

River Thames

Thames – Isle of Dogs

CONDITIONAL SENTENCES

If human beings go on modifying the environmental cycles they will stop the ability of ecosystem to provide benefits to humans.

if - clause

main clause

(hypothesis)

(result)

If we change our habits , we will save our planet.

When the if-clause comes before the main clause, they are separated with a comma. IF we don’t cut them down, trees like these will be almost every where

When the main clause comes before the if-clause, then they are not separated with a comma. Trees like these will be almost every where if we don't cut them down

Type 1 Condition Simple Present

Result Simple Future

If we use less energy ,

we will help the greenhouse effect getting worse.

If you don’t know what the Greenhouse Effect may cause,

read about it and you’ll find out.

TYPE 1- Conditionals

If we use less energy we will help the greenhouse effect getting worse.

Type 1 conditionals can also be formed as follows: If - clause

Main Clause

If + Simple Present

Simple Present Imperative Can / must / may ... + bare infinitive

If + Simple Present

+

Simple Present

If you think our radiation is low, you're wrong!

If + Simple Present

+

Imperative

If you want to find out how to help our planet, click below on the link "Ways You Can Help."

If + Simple Present + Modal Verb

If we carry on polluting the atmosphere with greenhouse gases, it can cause very dangerous effects on the Earth.