2,"many a +??????"?????????????????????????????????????????????????????????????????????.?????????
Many a student has been sent to plant trees. ???????????????????????????.
3,"half of,the rest of,most of,all of?????????????????????+of ???????????????"???????????????????????????????????????of??????????????????.?????????
Three fourths of the surface of the earth is covered with water.???????????????????????????????????????.
4,all??????????????????????????????all???????????????????????????.?????????
"All are present and all is going well." ?????????????????????????????????????????????
5,what???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????.?????????
What they want to get are a number of good books.????????????????????????????????????.
6,and????????????????????????????????????each,every,no??????????????????????????????????????????????????????????????????.?????????
No book and no pen is found in the schoolbag.???????????????????????????.
7,??????????????????as well as,with,along with,together with,but,like,rather than,except????????????and??????????????????????????????????????????????????????????????????????????????????????????.?????????
My father as well as his workmates has been to Beijing. ???????????????????????????????????????.
8,each???????????????????????????????????????????????????????????????each??????.?????????
They each have a bike. ??????????????????????????????.
9,????????????????????????-ing???????????????????????????????????????????????????.?????????
Going out for a walk after supper is a good habit.???????????????????????????????????????.
10,the following??????????????????????????????????????????????????????????????????.?????????
The following are good examples????????????????????????.
11,???-ics???????????????????????????politics,physics,mathematics???????????????????????????????????????.???-s???????????????news,works,plastics???????????????.?????????
Politics is now taught in all schools. ?????????????????????????????????.
??????-ics???????????????????????????"??????"??????????????????????????????????????????mathematics??????????????????politics(???????????????economics?????????????????????
12,?????????????????????????????????????????????????????????????????????trousers,glasses,shoes.shorts.scissors.scales?????????????????????????????????"??????","??????","??????"?????????????????????????????????????????????????????????????????????????????????????????????????????????.?????????
The shoes are all right. ????????????????????????.
???????????????-s?????????????????????????????????arms????????????.clothes.contents.minites????????????.remains????????????.thanks???
13,"one and a half +??????"???????????????????????????????????????.?????????
One and a half apples are left on the table. ???????????????????????????.
14,"One or two more +????????????"????????????????????????????????????.?????????
One or two persons are sent there to help them do the work. ?????????????????????????????????????????????.
15,"one of+????????????+ ????????????"????????????????????????????????????????????????????????????"the only one of +????????????+????????????"???????????????"the one of + ????????????+????????????"???????????????????????????????????????.?????????
He is one of the students who get there on time.???????????????????????????????????????.
16,???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????.?????????
One million dollars is a lot of money. ??????????????????????????????.

???-s???????????????????????????????????????:
??????????????????????????????????????????????????????-s???-es?????????????????????-s???????????????????????????????????????
???????????????????????????????????????????????????????????????????????????-s????????????????????????????????????????????????
????????????-s???????????????????????????????????????????????????
????????????-s???????????????????????????????????????????????????
????????????-s???????????????????????????????????????????????????
????????????-ics???????????????????????????????????????????????????
??????????????????-s????????????????????????????????????

?????????????????????????????????:
???????????????????????????????????????????????????????????????????????????.??????????????????????????????"???"?????????????????????.
1)??????????????????.????????????????????????????????????????????????????????????????????????
a class???classes; a family???families; a government???governments; an army???armies; a people???peoples; a group???groups; a crowd???crowds; a crew???crews??????
??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
???????????????????????????????????????????????????
????????????
A big crowd often gathers on the square every morning.
???????????? ????????????????????????????????????
The government has decided to pass the bill.
?????????????????????????????????
There are huge crowds in the streets on Sunday.
??????????????????????????????????????????
There are many English-speaking peoples in the world.
????????????????????????????????????
??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????"???????????????"???.
2)?????????.??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????.??????????????????????????????????????????
???????????????????????????humanity,mankind,proletariat???.
????????????The proletariat is the greatest class in the history of mankind. In the fields of production and scientific experiment,mankind makes constant progress.
3)?????????.?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????.??????????????????police,cattle,faculty,flock,machinery,vermin,personnel???.?????????????????????????????????????????????.
????????????The police have caught the murder.
Our personnel are very highly trained.
The vermin are very dangerous.
4)???????????????.?????????????????????????????????????????????????????????????????????.??????????????????????????????????????????????????????????????????????????????.
????????????The school teaching staff are (is) excellent.
The public is (are) requested not to litter in the park.
The teaching profession claim(s) to be badly paid.
?????????????????????????????????class,family,team,crew,board,herd,committee,party,jury,enemy,audience???.
??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
?????????????????????????????????????????????????????????????????????????????????????????????????????????
????????????The football team is playing well.
?????????????????????????????????.
The football team are shavings bath and are then coming back here for tea. ?????????????????????????????????????????????????????????
The family is a very happy one.?????????????????????????????????????????????
That family are very pleased about the news of William's success. ????????????????????????????????????????????????

????????????????????????:
????????????????????????????????????????????????????????????????????????????????????????????????
????????????????????????people,police????????????????????????????????????????????????????????????
many a?????????????????????????????????????????????or???nor???but also???there be???????????????????????????