四、标点符号及大小写错误
1) However, every coin has two sides. I think the surroundings in our canteen are the best among all universities.
2) The man was racing down the street because he was late for the class.
3) At last I want to let you know that I love our university very much.
4) My favorite sports are swimming, jogging, mountaineering and playing table tennis.
5) The best English film in my eyes is Forrest Gump.

五、冠词用法讲练
EXERCISE 1
A.  1. a         2. an
3. an         4. an
 5. an         6. an
 7. a         8. an
B.  1. a new office building     2. travel agent
 3. an American scientist     4. a day’s outing
 5. an Indian stamp      6. a heart attack
 7. an advanced country     8. an interesting play

EXERCISE 2
 1. A (telephone); a      2.x; x; x
 3. a; a; an; a       4.a; a; a; an
 5. a; a; a; a; a       6.an; a; x; an; x; a; a
 7. a; an        8.x

EXERCISE 3
A. 1. a (very bad night); a (wink)
 2. an (honesty)
 3. a (vision of a new and happier Europe)
 4. a (holiday); a (day off); a (month)
 5. an (hourly service)
 6. a (great honour); a (gathering)
 7. a (mountain); a (horror)
 8. an (early age)
 9. a (word)
 10.a (boy)
B. 1. a (big problem); (not too big) a (problem)
 2. a (square nose); (so handsome) a (man)
 3. (However great) a (disaster)
 4. (Many) a (shipwrecked sailor)
 5. (Such) an (urgent need)
 6. (So urgent) a (need)
 7. (as lovely)a (picture)
 8. (what) a (serious crisis)
 9. (many) a (greater man)
 10. (How serious) a (crime)

EXERCISE 4
 1. the; x       2. x; The(forests)
 3. x; The(nature)     4. The (education); x
7. x; the       8. the; x

EXERCISE 5
A. 1.x; a; the       2. The (steam-engine); the
 3. The (bat); a      4. x; the; x; a
 5. the       6. a; the; x; x
 7. The(prison);a     8. The (youngest); x; the; x
B.  1.The (horse); a (noble animal); a (faithful servant)
 2. a (game)
 3. the (school); the (behaviour);the (pupils)
 4. The (dinner); the (speeches)
 5. the (setting of goals)
 6. the (hospital); (at) the (end of)t he (week)