There are a small number of verbs made from adjectives (or occasionally nouns based on adjectives) with -en added, meaning to make something more of that quality the adjective describes.
These verbs fall into certain categories:
Dimensions and shape - lengthen, shorten, straighten etc
Light and colour - brighten, darken, whiten etc
Density and composition - harden, soften, thicken etc
Others - freshen, ripen, sweeten etc
These are ergative verbs, which means they can be transitive or intransitive, and where the object of the transitive verb becomes the subject of the intransitive verb.
The hot summer ripened the fruit earlier than usual.
The fruit ripened in the sun.
For more on ergative verbs see my post - Ergative verbs? What on earth are they?
Here are three short exercises based on -en verbs
The verbs have been divided up at random; each exercise follows the same form - fill the gaps with an appropriate form of the verb. Careful! There are one or two -ing participles, at least one passive. There are also some common collocations, and in the third group, an idiom.
Ex 3 - 1. lightening, 2. quickened, 3. awakened, 4. straightening, 5. was saddened, 6. dampen, 7. darken, 8. stiffen, 9. are widening, 10. weakened
Printer friendly post
You can make a teacher copy with answers by clicking on 'Show All'. Make sure you 'Clear All' before printing student copies. Or you can print normally and the answers will appear on a separate page (Page 3). The lesson is on Pages 1-2. I strongly recommend doing a Print Preview first. You might want to change your margins and you certainly won't want to print every page.
Random Idea English http://random-idea-english.blogspot.com
- Confusing Words - Matching Exercises Based On Two Top Ten Lists
Among the growing number of 'Top 10 lists' at Merriam-Webster online dictionary are two sets on confusing words. Here are a couple of exercises based on them.
Merriam-Webster Top 10 confusing words - Set 1
Try the exercise without...
- Confusing Words - Comparison With As And Like
The uses of as and like are often confused. Try and sort them out by doing these quizzes.
Matching quiz - sentences with as and like
Complete the rules
Different uses of as - multiple choice quiz
Choose between as and like, gapfill quiz
Verbs of...
- Bits And Pieces - Some Exercises On Partitive Nouns
We use several words to talk about one bit or part or a large amount of something when using uncountable nouns. These are sometimes called partitive nouns and many of them collocate with certain nouns. test your knowledge with these exercises. (One...
- Vocabulary Corner - Old Wives Tales And Superstitions
The Oxford Advanced Learner's Dictionary has the following definitions:
old wives' tale - an old idea or belief that has been proved not to be scientific
supersition - the belief that particular events happen in a way that cannot be...
- Confusing Words - Different, Other, Another And Next
Sometimes students can get a bit confused with the words: (a) different, another, (the) other and (the) next. Try the first exercise, then we'll take a look at the differences, with some more exercises and a story.
Click and Drop - Where...