1. This document provides word forms related to electricity, energy consumption, effectiveness, and innovation. It lists nouns, verbs, adjectives, and their variations. For example, it pairs the noun "electricity" with related words like "electric", "electrical", and "electrically". 2. The document also covers synonyms and antonyms and their word forms. For instance, it includes the words "effective", "effectively", and "ineffectively". 3. The word forms are grouped into categories like nouns, verbs, adjectives to show their grammatical functions and relationships within word families. This allows for understanding variations that can be used in different contexts.

1. UNIT 7 – WORD FORM
1. He turned off the ___________ when he went out of the house.
( electric)
2. I’m an _____________ engineer at this factory ( electricity )
3. My uncle has just bought an ___________ cooker ( electricity )
4. Energy-saving bulbs should be used to save ___________ ( electric )
5. Gas and oil ______________ always increases in cold weather.
( consume)
+ n
electricity
n
adj
electrical
n
electric
adj
n
electricity
v
S (n)
consumption

2. 6. Energy-saving bulbs help _________ save money ( consume )
7. Playing games online is very time - ____________ ( consume)
8. Many newer cars have a much lower fuel ____________
( consume)
9. We find advertising on the radio very __________. ( effect)
10. Consumers now want products that work ____________ and
save money. ( effect )
v
consumers
+ O (n)
consuming
be adj
adj noun phrase
consumption
+ O + adj
effective
v + adv
effectively

3. 11. Scientists look for an ___________ way to reduce energy
consumption.( effect)
12. We have used _____________ planting methods, so all the trees
died. ( effect )
13. I’m pleased that my secretary solved the problem__________
( effect )
14. The ___________ students often play basketball at recess.
( energy)
15. They need an advanced solar ____________ program.(energetic)
n
adj
effective
n
adj
ineffective
v O adv
effectively
n
energetic
adj
adj n
energy

4. 16. The worker was dismissed for being ____________. ( efficient )
17. The label tells the consumers how much energy ____________
each model has ( efficient ).
18. Electricity, gas and water are not _____________ but
necessities. ( luxurious )
19. The boss wants to find a ____________ for Minh because he
works carelessly( replace )
20. His role is ____________, so he is the best paid here. ( replace )
be adj
inefficient
n
efficiency
be Ns
luxuries
Ns
n
replacement
adj
irreplaceable

5. 21. Some Americans, fearing food _________ from COVID-19,
have cleaned out supermarket shelves. ( short )
22. There is a __________ of water in this area ( short )
23.__________,the innovations will save money and conserve
resources.(ultimate)
24. There have been many _____________ in the field of
telecommunications ( innovate)
25. Life always needs a lot of _______________ ( innovate )
V N shortages
n
shortage
adv
Ultimately
Ns
innovations
Ns
innovations

6. 26. She is selling a lot of clothes at a huge ____________ (reduce)
27. Food and clothing are basic _____________. ( necessary )
28.Hung King’s Festival promises to be an __________ enjoyable
event.(enormous)
29. They have made ___________ on how to protect the
environment. ( suggest )
30. Learning basic useful phrases to make polite ___________ is a
good way to improve English conservation skills ( suggest )
adj n
reduction
adj
necessities
adj
adv
enormously
suggestions
suggestions
adj