He has given me a great deal of help.
I am afraid I am giving you a great deal of trouble.
She is a great deal better today.
*修饰不可数名词
a great deal of
a large amount of
much, (a) little
*修饰可数名词
a/the number of , a large number of
many, (a) few
*都可以修饰
a lot of
lots of
plenty of
a large quantity of
large quantities of
a mass/masses of (一大堆)
a night
不定冠词a, an用于表示计数单位的名词前，表示“每一”
He earned only 20 dollars a day.
He drove his car at 70 miles an hour.
定冠词the也可以与名词连用表示度量
These apples sell 2 dollars the kilo.
The worker is paid by the hour.
有时用per (= for each) 表示“每一”
The workbook is only 3 yuan per / a / the copy.
…a Swedish chemist and inventor…
(从第二个名词起无冠词，表示单一概念)
a singer and film star is …
a singer and a film star are…
a red and blue pencil is…
a red and a blue pencil are…
The owner and captain refused to leave his sinking ship.
The neighbour and the colleague are waiting for me.
inexact a. not exact or precise 不精确的；不准确的；不严谨的
Weather forecasting is an inexact science. 天气预报是一门模糊的科学。
exact a. 确切的
Try to understand the exact meaning of the sentence.
This is the exact time he arrived.
Cf. accurate 精确的
Making a spacecraft needs accurate calculation.
actual 实际的
His actual identity is the spy of that country.
inaccessible adj. not easy to reach
The papers were inaccessible to the public.
This place is inaccessible to ordinary cars.普通车辆无法到达这地方。
Heavy snow made the village inaccessible to traffic.
opp. accessible a. 容易取得或达到的
accessible to: be able to reached, used, visited etc.
Medicine should not be kept where it is accessible to children.
药品不该放在孩子容易拿到的地方。
The information is accessible to all.
A collection of paintings are not accessible to the public.
access n.
access to
Only high officials had the access to the emperor.
Students must have access to good books.
There is no access to the house from the main road.
You can easily get access to him. 你很容易接近/见到他。
The only access to that building is along that muddy track.
只有沿着那条泥泞小道才能到达那幢建筑物。
Students need easy access to book. 学生们需要有方便的借书途径。
Cf. available 可得到的，可使用的
The doctor is not available to you now.
Plenty of room are available.
achieve vt. 1. gain or reach (sth.), usu. by effort, skill, courage, etc. 获得或达到
achieve success / one’s ambition / peace of mind / purpose
2. get sth. done; accomplish or complete做成；实现；完成
I have achieved only half of what I’d hope to do.
achievement n. 1. u. n. action of achieving 完成，达到
celebrate the achievement of one’s aims
2. c. n. thing done successfully, esp. with effort and skill
