M01 laws tm4 5700. indd

 3. 
Two changes will help to solve the problem of overcrowded classes at our school. 
 4. 
Bicycle riders should take precautions when riding on crowded city streets. 
 5. 
Biotechnology is the use of plant or animal cells for commercial or scientific uses.
B. 
Decide which sentence is the best topic sentence and label it 
best
. Then look at the 
other sentences and label them 
TG 
(too general), 
TS
 (too specific), or 
I
 (incomplete). 
 1.  Calling someone a “chicken” indicates your belief that the person lacks courage. 
 2.  In many cultures, birds symbolize a wide range of positive and negative meanings. 
 3. Birds are graceful and beautiful. 
 4. The Japanese belief that 1,000 folded paper cranes will bring a long life
 5.  A British superstition holds that if the black ravens at the Tower of London ever 
fly away, the British monarchy will come to an end. 
C. 
Read each sentence and label it 
O
 (opinion), 
F-NP
 (fact that needs proof), 
or 
SSD 
(specific supporting detail). 
 1. Thousands of young people begin smoking every day.
 2. Approximately 52% of smokers attempted to quit in 2010.
 3. Smoking is relaxing and enjoyable.
 4.  Each day, over 3,800 persons under the age of 18 smoke their first cigarette.
 5. Many adult smokers want to quit smoking.
D. 
Edit the underlined word forms as needed. If a form is correct, do not write anything.
 1. 
Birgitte speaks three languages fluently, but Swedish is her dominate language.
 2. 
Computers were designed to help people work more efficiently, but many workers use 
computers unproductive.