3．When the Beijing-Shanghai train runs at 250 kph, the passengers spend　　　　　 on the train.

A．ten hours　　　 　　　　　 B．twelve hours　　　 　　　 C．one day　　　 　　　　　　 D．two days.

2．How many times have the trains been speeded up so far?

A．Five.　　　　 　　　　　　 B．Six.　　　　　　　 　　　 C．Seven.　　　　 　　　　　 D．Eight.

[考例]

[福州]Beijing-Shanghai Railway was completed in 1968. The line runs 1,462 km between China's two main cities and pas

ses through five provinces and the city of Tianjin.

Since opening, it has been one of the busiest routes in our country. The Beijing-Shanghai route is now served by 10 trains a day, five of which are non-stop. The journey time is just under 12 hours.

Now trains are allowed to travel at 250 kph ( kilometers per hour) and the journey time is only 10 hours.

With the sixth railway speedup, China has joined the ranks (行列) of countries with high-speed rall serviees. Trains are able to run at speeds of 200 kph on some 6,003 km of track(轨道), and on some sections, the highest speed can increase to 250 kph. The 6,003 kmof track serves both high-speed passenger trains and low-speed cargo (货物) trains.

Railway operators have to deal

with the problem of the speed gap (差距) between the two kinds of trains to make sure they both run safely.

1．The Beijing-Shanghai Railway line runs 1,462 kilometers, doesn't it?

A．Yes, it does.　 　　　　 B．No, it doesn’t.　 　　　　　　 C．1t' s very far.　 　　　　　　　 D．We don' t know.

9.其他不规则变化

　man-men　woman-women　goose-geese　foot-feet　tooth-teeth

　child-children　fish-fish　deer-deer　sheep-sheep　mouse-mice

　fisherman-fishermen

　歌诀记忆：男人(man)？女人(woman)？a变e，鹅(goose)？足(foot)？牙(tooth)？oo变ee。孩子(child)加上ren，鱼(fish)？鹿(deer)　绵羊(sheep)不用变。

　[注]fish指鱼的种类时，要加上－es构成其复数；当指鱼的条数时，单复数同形；指鱼肉时，为不可数名词。

　不规则形容词副词比较级与最高级

　原级　比较级　最高级

　bad　 worse　 worst

　badly　 worse　 worst

　far　 farther　 farthest

　further　 furthest

　good　 better　 best

　ill　 worse　 worst

　late　 later　 latest

　little　 less　 least

　many　 more　 most

　much　 more　 most

　old　 older

　elder　 oldest

　eldest

　well　 better　 best

8.以s，x，ch，sh结尾的名词加－es，如：

　class-classes　box-boxes　watch-watches　speech-speeches　bus-buses　brush-brushes　bench-benches　beach-beaches　boss-bosses

　church-churches

7.以辅音字母+y结尾的名词，变y为i再加－es。例如：

　baby-babies　city-cities　story-stories　party-parties　lady-ladies

　diary-diaries　army-armies　century-centuries　copy-copies

6.由man和woman构成的合成名词，两个构成部分都要变成复数

　如：man worker-men workers(男工人)

　woman doctor-women doctors(女医生)

5.以s结尾，仍为单数的名词

　(1)maths，politics，physics等学科名词，为不可数名词，是单数。

　(2)news是不可数名词。

　(3)the United States，the United Nations应视为单数。

4.以复数形式出现的名词

　scissors剪刀　goods货物　trousers/pants/shorts裤子　clothes衣服

　glasses眼镜

3.表示“国家”的名词变复数

　Chinese-Chinese　Japanese-Japanese　Englishman-Englishmen

　Frenchman-Frenchmen　German-Germans　Russian-Russians　Indian-Indians

　Canadian-Canadians　American-Americans

　歌诀记忆：中(Chinese)日(Japanese)不变，英(Englishman)法(Frenchman)变，其余后面(如German等)加s。