Unit 1: Verbs, Adverbs and Adjectives

This website has explanations and exercise sheets for adjectives, verbs, adverbs and much more.
http://owl.english.purdue.edu/handouts/index2.html

ADVERBS

This website lists many other websites for adverbs.
http://newton.uor.edu/facultyfolder/rider/adverbs.htm

This website has an interactive quiz to recognize adverbs.
http://www.learn4good.com/languages/evrd_grammar/adverb_ex1.htm

This website explains adverbs. Then near the bottom of the page, there are links to other sites.
http://esl.about.com/library/grammar/blgr_adverbs.htm

In this interactive quiz, you decide whether to uase an adverb or an adjective in a sentence.
http://a4esl.org/q/h/9901/gc-advadj.html

VERBS
This website provides information for writing. In a section called 'Using Verbs', you'll find information about compound verbs, auxiliary verbs, transitive and intransitive verbs, linking verbs, and more.
http://www.writingcentre.uottawa.ca/hypergrammar/useverb.html

This website shows all the verb tenses both active and passive, and gives an example sentence for each one.
http://owl.english.purdue.edu/handouts/esl/esltensverb.html

This website is a verb tense tutorial with lots of information and interactive exercises in using verb tenses.
http://www.englishpage.com/verbpage/verbtenseintro.html

ADJECTIVES
http://esl.about.com/library/grammar/blgr_adjectives.htm

http://www.edhelper.com/language/adjectives1241.html
http://www.ac-nancy-metz.fr/enseign/anglais/Henry/adj.htm

This website has a good explanation of comparative & superlative adjectives:
http://www.it-infothek.de/fhtw/semester_2/t_en_02.html

http://www.esl-library.com/pdf/lessons/10.comparatives-superlatives.pdf

Here are some websites where you can print worksheets to practice adjectives:
Comparatives:
http://www.pearsonlongman.com/totalenglish/pdfs/downloads/upper-intermediate/upp-int_unit_6_grammar_3.pdf
http://www.usp.edu/writing/handouts/ps/PS08-Comparatives.pdf

Comparatives & superlatives:
http://www.elmwood.peoria.k12.il.us/EHS/ASSIGNMENTS/TEACHERS/REICHERS/WebPage/8th%20English/Chapter%205/Exercise%20Bank/5-5.pdf
http://www.usp.edu/writing/handouts/ps/PS06-Adjectives.pdf

Here are some websites where you'll find interactive exercises to practice adjectives:
http://www.ucl.ac.uk/internet-grammar/adjectiv/xadjv1.htm
Participial adjectives:
http://ww2.college-em.qc.ca/prof/epritchard/boreding.htm
http://www.grammar-quizzes.com/passive3a.html
http://www.geocities.com/Athens/Delphi/1979/grammar.html
http://www.geocities.com/Athens/Delphi/1979/grammar/ed-ing2.html
http://www.geocities.com/Athens/Delphi/1979/grammar/ed-ing3.html
Adjective placement:
http://esl.about.com/library/grammar/blgr_adjective_order_quiz.htm
Compound adjectives
http://www.englishmedialab.com/Quizzes/advanced/compound%20adjectives%20match.htm