PET 2 (Compact PET) - Unit 1

Present Simple

http://www.ego4u.com/en/cram-up/tests/simple-present-1

Present Continuous vs present simple

http://www.englishpage.com/verbpage/verbs1.htm

Present Perfect

http://www.ego4u.com/en/cram-up/tests/present-perfect-simple-1

Education vocabulary/collocations

http://www.flo-joe.co.uk/preliminaryenglish/vocabulary/education-collocations.htm

http://www.flo-joe.co.uk/preliminaryenglish/vocabulary/classroom-vocabulary.htm

http://www.examenglish.com/vocabulary/b1_education.htm

 

Connecting words:

unless = if not

Unless is similar in meaning to if not and can be used instead ofif not in certain types of conditional sentences. We normally useunless with present tenses when we are referring to the future:

You won't get in to see the show, if you don't have reserved seats. OR:
Unless you have reserved seats, you won't get in to see the show.

Let's play tennis on Saturday, if it's not raining. OR:
Let's play tennis on Saturday, unless it's raining.

I'll see you at the gym this evening, if you're not too tired. OR:
I'll see you at the gym this evening, unless you're too tired.

if not

However, we cannot use unless in questions:

• What will you do if you don't pass those exams?
• If I don't pass those exams, I won't be able to study in Australia
• I won't be able to study in Australia, unless I pass those exams.

And we cannot use unless with would to talk about unreal future situations:

• If he didn't take everything so seriously, he would be much easier to work with. 
• If he weren't so bad-tempered, I would help him to get the work done

We cannot use unless with would have to talk about unreal situations in the past either:

• If you hadn't driven so recklessly, you wouldn't have had this accident.
• If you hadn't had that last glass of wine, this would never have happened.

So or because

http://a4esl.org/q/h/lb/sobe.html

Quiz: Although, Though, Despite and However

http://www.usingenglish.com/quizzes/89.html