1. Mr Black 
changes
 his plan because of the heavy snow.
2. People like eating 
watermelons
 in summer.
3. You should watch 
less
 TV to protect(保护) your eyes.
4. The question is too difficult, so the 
whole
 class can't answer it.
5. People usually have three 
meals
 every day.
6. —What's the 
score
 of the school football match at last?
—Sorry, I don't know.
7. He needs to buy two 
kilos
 of pork and some vegetables.
8. —Mum, I got 100 
points
 in my Maths test.
—Oh, you are great. But I hope you can also do well in your English.
9. You shouldn't eat too much 
sugar
. It's bad for your teeth.
10. Meat can give us 
energy
, but too much meat is bad for our health.
答案:1. changes 2. watermelons 3. less 4. whole 5. meals 6. score 7. kilos 8. points 9. sugar 10. energy
1. Playing computer games 
is bad for
 your study. You must stop playing them.
2. My brother wants to 
keep fit
. He exercises every day.
3. Chinese is very 
important
. We must learn it well.
4. —How many times do you brush your 
teeth
 every day?
—Three times.
5. You are not fit, and you should change your 
lifestyle
.
答案:1. is bad for 2. keep fit 3. important 4. teeth 5. lifestyle
三、根据句意,用括号中所给单词的正确形式填空。
1. If you want to be a good dancer, you need 
to practise
(practise) hard.
2. He keeps eating more and exercising less without 
changing
(change) his lifestyle.
3. They will come in 
less
(little) than half an hour.
4. —
Is
(be) there any rice or meat on Mrs Zhao's list? —No.
5. —Would you like something to drink? —Yes, please. Give me some 
orange
(orange).
6. What about 
having
(have) dinner with us tomorrow?
7. For breakfast, we need to eat 
well
(good) and have a healthy start.
8. Please cut the lemon into 
halves
(half).
9. The chicken 
tastes
(taste) nice. Would you like some?
10. She often eats 
watermelons
(watermelon) in summer.
答案:1. to practise 2. changing 3. less 4. Is 5. orange 6. having 7. well 8. halves 9. tastes 10. watermelons