15.“做足够的运动”是do enough exercise，“做眼部运动”是do eye exercises ，什么时候作不可数名词，什么时候作可数名词？这里exercise泛指“运动、锻炼”，是不可数名词。“做眼部运动”是do eye exercises，这里exercises指具体的运动与锻炼项目，是可数名词。另外，exercise作“练习、习题”解时也是可数名词。
I have a lot of exercises to do.我有许多习题要做。
16.该上课了。
It's time for the class. 错误
It's time for class.正确
17.三班是获胜者
Class 3 was the winners. 错误
Class 3 were the winners. 正确
class在这里是集合名词，指“三班的运动员”，作主语时 动词用复数形式。在英语中，class, family, team等集合名词作主语，当做一个整体看待时，Be动词用单数形式，指其中的各个成员时，Be动词用复数形式。试比较
My family is a large one.
我家是个大家庭。
My family are having supper.
我们一家人正在吃晚饭
Class 3 is a good class.
三班是个好班级。
Class 3 are having an English lesson.
三班的学生正在上英语课。
18. 以-o 结尾的名词复数加-s 还是加-es？
以o 结尾的名词复数多数都可加 。如：
tomato-tomatoes番茄 potato-potatoes 马铃薯
某些外来词词尾加-s 。如：
photo-photos照片 kilo-kilos 公斤
词尾为两个元音字母的词加-s，如：
zoo-zoos（动物园）radio-radios收音机
19.他们有多少只鸡？
How many chicken do they have? 错误
How many chickens do thay have? 正确
chicken在这里作为家禽的鸡时，是可数名词复数形式是chickens，作为食品的鸡肉时，是不可数名词，没有复数形式。
I like chicken very much.
我非常喜欢吃鸡肉。
20“一杯水”和“一杯茶”应该怎样说？
英美人喜欢用玻璃杯喝水，用瓷杯喝茶，所以“一杯水”习惯说：a glass of water一杯茶”习惯说：a cup of tea不可以说a cup of water或a glass of tea
21.请给我一瓶柳橙汁。
Please give me a bottle orange juice. 错误
Please give me a bottle of oranges juice.错误
Please give me a bottle of orange juice.正确
当orange juice作“柳橙汁”时是不可数名词，没有复数形式，表示“一瓶柳橙汁”应说a bottle of orange juice不可数名词需要计数时，前面需加表示单位的量词。如：
a piece of paper一张纸 a glass of milk 一杯牛奶
a bag of rice 一袋米 two cups of tea两杯茶
22.今天是九月十日，教师节。
Today is September 28th, Teachers' Day.错误
Today is September 28th, Teacher's Day.正确
表示人或有生命的东西的名词，其所有格加“ 's ”，所以“教师节”应为Teacher’s day。若复数名词不是以-s结尾的，仍需加-'s,如Children's Day 儿童节 Women’s Day妇女节
23.请你告诉我去公园的路好吗？
Can you tell me the road to the park?错误
Can you tell me the way to the park?正确
way 是指为了到达指定地点必须经过的地方，可以是街道、森林、田野、沙漠等。指抽象意义的“方向”“途中”只能用way，不能用road，road指两个地方中间能通车的大道。
24.What's the date today?和 What day is (it) today?分别是什么意思？
What's the date today?是问日期，意思是“今天是几号？”回答为Todayis May 1st今天是 5月1 日。另一个是是问星期几，意思是今天是星期几，回答是It’s Monday.“今天是星期几？”回答是：It’s Monday.
25.我去过纽约很多次。
I have been to New York many time.错误
I have been to New York many times.正常
time作“时间”解时是不可数名词，但作“次数”解时是可数名词，所以“很多次”应为many times或a lot of times “两次”要用twice不说 two times
如下这些题有人会做吗？
1. －Where is New York? －It’s in the ____ of America.
A. northwest B. northeast
C. southeast D. southwest
2. －Where's Tom?
－He's left a ____ saying that he has something important to do.
A. excuse B. sentence
C. news D. message
3. The teacher's name is John Henry Brown. His students call him ____.
A. Mr. Brown B. Mr. John
C. Mr. Henry D. Mrs. Brown
4. －When do you usually have your ____ in the evening?
－We usually have it at half past six.
A. things B. rice
C. meal D. food
5. They got much ____ from those new books.
A. ideas B. photos
C. information D. stories
6. Mr. Brown is a teacher. He works in a new ____.
A. shop B. school
C. factory D. hospital
7. She was born in Kaohsiung, but Taipei has become her second ____.
A. family B. home
C. house D. country
8. There is a ____ over the river.
A. ship B. boat
C. bridge D. village
9. I want to call Linda. May I use your ____?
A. book B. dictionary
C. telephone D. bike
10. Mom, my shoes are worn out. Please buy me a new ____.
A. one B. ones
C. pair D. pairs
11. There are a lot of ____ down there but hardly any ____.
A. sheeps; people B. sheep; people
C. sheeps; peoples D. sheep; peoples
12. －Would you like ____ tea?
－No, thanks. I have drunk two ____.
A. any; bottles of orange juice
B. some; bottles of orange juice
C. many; bottles of oranges juice
D. few; bottles of oranges juice
13. Did you listen to the ____ reports?
A. policemen B. policemen's
C. policemens' D. policemens
14. We will have a ____ holiday after the exam.
A. two month B. two-month
C. twomonth's D. two-months
15. There is not enough ____ in the corner to put the table.
A. place B. room
C. oor D. ground
16. －Would you like something to drink?
－Yes, some ____, please.
A. tea B. bread
C. meat D. sh
17. Mr. Lin often gives us ____ by e-mail.
A. some good information B. some good informations
C. good informations D. a good information
18. There are ____ in the eld. They're eating grass.
A. a horse B. much horses
C. many horse D. many horses
19. What goes up but never comes down?
A. A cat. B. A car.
C. Water. D. Your age.
20. There are few ____ in the refrigerator. Let's go and buy some peas,
carrots and cabbages.
A. vegetables B. fruit
C. meat D. eggs
21. －What can I do for you? －I'd like two ____.
A. box of apple B. boxes of apples
C. box of apples D. boxes of apple
22. －Whose bike is it? －It's ____.
A. John B. John's
C. Johns' D. Johns
23. －Is this your room? －No. It's ____ room.
A. the children B. the children's
C. children D. the childrens'
24. －I'll give you ____ to do the work. －OK.
A. two week's time B. two weeks' time
C. two week time D. two weeks time
25. There are two new doctors in that hospital. They are from ____.
A. Germans B. German
C. Germany D. Germen
26. －What's the ____ like today? －Cloudy.
A. sky B. air
C. land D. weather