Unit 5
Weather vocabulary:
http://esl.about.com/library/vocabulary/blwordgroups_weather.htm
Conjunctions:
http://www.english-test.net/esl/learn/english/grammar/ei104/esl-test.php
Possessive Pronouns
http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/poss.htm
Unit 6
Verbs followed by a noun or by an infinitive:
http://www.englishpage.com/gerunds/verb_noun_infinitive_list.htm
The use of Often:
http://www.helping-you-learn-english.com/the-use-of-often.html
Time expressions
http://www.english-at-home.com/grammar/time-expressions-in-english/
