1. Page 1 Essential Words for the TOEFL Lesson 6 by: Alaa’ Alharbi

2. Page 2 Coarse Smooth

3. Page 3 Coarse Fine

4. Page 4 Coarse (adj) Not smooth; not fine or delicate adv. Coarsely n.Coarseness Syn. Rough

5. Page 5 Conventional Conventional energy sources are typically fully developed, nonrenewable resources, while nonconventional sources may be functional but are still undergoing development and use renewable resources. Conventional sources of energy usually include fossil fuels like coal, natural gas and oil as well as nuclear power. Nonconventional sources include solar power, hydropower and wind power.

6. Page 6 Conventional (adj) Following what is traditional or accepted rules or standards adv. Conventionally n. convention Syn. Traditional, Ordinary Ant. Unconventional

7. Page 7 Rigid Ex: The rules in schools must become less rigid. Ex: His eyes moved slowly, his body remained rigid as he was petrified.

8. Page 8 Rigid (adj) Not easy to bend; firm; inflexible or strict adv. Rigidly n. Rigidity Syn. Stiff

9. Page 9 -“You get a curious feeling when you’re about to leave a place, like you’ll not only miss the people you love but you’ll miss the person you are now at this time and this place, because you’ll never be this way ever again.” - They were so curious to know why the manager resigned.

10. Page 10 Curious (adj) Odd or strange; eager to learn adv. Curiously n. Curiosity Syn. Peculiar; inquisitive

11. Page 11 Exceedingly (adv) Very; to an unusual degree v. Exceed n. Excess adj. Excessive adv. Excessively Syn. Extremely This season is exceedingly hot. The temperature can get to 50 °C.

12. Page 12 Sufficiently (adv) Enough; in a satisfying manner v. Suffice n. Sufficiency adj. Sufficient Syn. Adequately The following day she felt sufficiently well to go to work.

13. Page 13 Immense (adj) - Pinwheel is an immense galaxy, twice the diameter of the Milky Way and possessing as many as ten times the number of stars. - I have worked so hard yesterday, but there is still an immense amount of work to be done.

14. Page 14 Immense (adj) Extremely large or great adv. Immensely n. Immensity Syn. Massive, Enormous

15. Page 15 Exclusively (adv) No one else; nothing else; not shared with others v. Exclude n. Exclusion adj. Exclusive Syn. Restrictively This room is used exclusively by the faculty.

16. Page 16 Routinely (adv) Regularly; usually done adj. Routine n. Routine Syn. Ordinarily

17. Page 17 Commonplace (adj) Ordinary Syn. Frequent EX: Computers are now commonplace in primary classrooms.

18. Page 18 Visibly (adv) Light or visible light is electromagnetic radiation that is visible to the human eye, and is responsible for the sense of sight.

19. Page 19 Visibly (adv) Can be seen adj. Visible v. View n. Vision adj. Visionary Syn. Noticeably He is visibly surprised.

20. Page 20 Chiefly (adv) The most important or most common adj. Chief Syn. Mostly, Mainly EX: Houses are made chiefly of wood products. He’s travelled widely, chiefly in Africa and Asia.

21. Page 21 Comparatively (adv) Lack of exercise is also a risk factor for heart disease but it’s comparatively small when compared with the others. Being measured or judged by comparison adj. Comparative v. Compare n. Comparason Syn. relatively

22. Page 22 Complex (adj) Difficult to understand or explain; Having many parts n.Complexity Syn. Complicated

23. Page 23 Indeed (adv) Certainly; really; used to emphasize a statement or to make it stronger Syn. truly Do you agree? Indeed, I do