Lesson 55 Nota gold mine
【New words and expressions】（19）
gold n. 金子
mine n. 礦
treasure n. 財寶
revealer n. 探測器
invent v. 發(fā)明
detect v. 探測
bury v. 埋藏
cave n. 山洞
seashore n. 海岸
pirate n. 海盜
arm v. 武裝
soil n. 泥土
entrance n. 入口
finally adv. 后
worthless adj. 毫無價值的
thoroughly adv. 徹底地
trunk n. 行李箱
confident adj. 有信心的
value n. 價值
★gold[^Euld] n. 金子
sth. be made of gold ……由金子做成的
gold watch；gold ring；golden sun 金色的太陽
golden [5^EuldEn] adj. 金色的, 寶貴的
Silence is golden. 沉默是金
golden opportunity 寶貴的機(jī)會 (opportunity [7CpE5tju:niti] n. 機(jī)會, 時機(jī))
golden sentence 黃金句型
I am honoured to have the opportuneity to do sth.
I am glad to have the golden opportunity to do sth.
I am glad to have the golden opportunity to stay with you.
goldfish n. 金魚
platinum [5plAtinEm] n. 白金, 鉑
★treasure n. 財寶 (為總稱, 沒有復(fù)數(shù))
‘treasure island’ 《金銀島》
jewel [5dVu:El] n. 寶石 珠寶, (可數(shù))
jewelry [5dVu:ElrI] n. 珠寶, 珠寶類 珠寶(總稱, 不可數(shù))
I have some jewels. = I have some jewelry.
diamond n. 鉆石
jade [dVeid] n. 碧玉 (不可數(shù)名詞)
jade palace 翠宮飯店
★revealer n. 探測器
reveal v. 揭示
★invent v. 發(fā)明
invention n. 發(fā)明
★detect v. 探測
detective n. 偵探
★pirate n. 海盜
pirate [5paiErit] n. 海盜, 盜印者, 盜版者, 侵犯專利權(quán)者
vt. 盜印, 盜版, 掠奪, 翻印 vi.做海盜
★arm v. 武裝
① n. 手臂；武器
hold one's arm
Farewell! Arms 永別了, 武器
farewell [5fZE5wel] int. 再會,別了!(常含有永別或不容易再見面的意思)
② v. 武裝
Soldiers should be armed well. 士兵應(yīng)該要很好的武裝。
be armed with … 用……來武裝
The youth should be armed with knowledge. 年輕人應(yīng)該用知識武裝自己
The teacher should be patient. =The teacher should be armed with patience.
be covered with 被……覆蓋
army n. 軍隊
★soil n. 泥土
soil n. 土壤 (能生長植物的地方)
earth n. 泥土 (泥巴)
★entrance n. 入口
entrance of/to… ……的入口
entrance of the park ； entrance to the park
exit [5eksit, -zit] n. 出口, 太平門, 退場, 去世；vi. 退出, 脫離, 去世
★thoroughly adv. 徹底地
completely/thoroughly/totally
★confident n. 有信心的
be confident of doing sth. 有信心做……
be confident that +從句 有信心做……
confidence n. 信心
【Text】
Dreams of finding lost treasure almost came true recently. A new machine called 'The Revealer' has been invented and it has been used to detect gold which has been buried in the ground. The machine was used in a cave near the seashore where -- it is said -- pirates used to hide gold. The pirates would often bury gold in the cave and then fail to collect it. Armed with the new machine, a search party went into the cave hoping to find buried treasure. The leader of the party was examining the soil near the entrance to the cave when the machine showed that there was gold under the ground. Very excited, the party dug a hole two feel deep. They finally found a small gold coin which was almost worthless. The party then searched the whole cave thoroughly but did not find anything except an empty tin trunk. In spite of this, many people are confident that 'The Revealer' may reveal something of value fairly soon.
參考譯文
近, 找到失蹤寶藏的夢想差一點兒變成現(xiàn)實. 一種叫 “探寶器” 的新機(jī)器已經(jīng)發(fā)明出來, 并被人們用來探測地下埋藏的金子. 在靠近海邊的一個據(jù)說過去海盜常在里面藏金子的巖洞里, 這種機(jī)器被派上了用場. 海盜們過去常把金子埋藏在那個洞里, 可后來卻沒能取走. 一支用這種新機(jī)器裝備起來的探寶隊進(jìn)入了這個巖洞, 希望找到埋藏著的金子. 當(dāng)這個隊的隊長正在檢查洞口附近的土壤時, 那臺機(jī)器顯示出它的下面埋有金子. 隊員們異常激動, 就地挖了一個兩英尺深的坑, 但后找到的是一枚幾乎一錢不值的小金幣. 隊員們接著又把整個洞徹底搜尋了一遍, 但除了一只空鐵皮箱外什么也沒找到. 盡管如此, 很多人仍然相信 “探寶器” 很快就會探出值錢的東西來.
【課文講解】
1、Dreams of finding lost treasure almost came true recently.
★dream n. 夢；v. 做夢
① n. 夢想
dreams come true 夢想成真
dreams ended 夢想破滅了, 夢斷了
dream of … ……的夢
Dream of flying in the sky comes true.
② v. 做夢
dream of doing sth.
I dream of flying in the sky.(dream v)
come true 變成現(xiàn)實，（預(yù)言、期望等）成為事實，（愿意）實現(xiàn)
His dream to travel around the world at last came true.
2、A new machine called 'The Revealer' has been invented and it has been used to detect gold which has been buried in the ground.
一句話中只有一個動詞, 如果再出現(xiàn)動詞, 可以用and并列連接, 也可以變成復(fù)合句, 用when, because連接, 還可以使這個動詞表示動詞意思, 但不做謂語, 即非謂語動詞
過去分詞做定語, 表示 “被”，如ploughed field
n. +called 被稱之為……的……（如果用短語修飾其他詞, 則把短語放在被修飾詞的后邊）
the plane called a “Pilatus Porter”
be used to do sth. 被用來……
used to do 過去常常
同位語從句中的引導(dǎo)詞只有一個that，不會用which
in the ground (更習(xí)慣于用 “under the ground” )
3、The machine was used in a cave near the seashore where -- it is said -- pirates used to hide gold.
it is said是插入語，當(dāng)“據(jù)說”講。
where = in which翻譯時譯為 “在那兒”，修飾 cave；一個地點狀語從句
This is the river where I swim.
4、The pirates would often bury gold in the cave and then fail to collect it.
would表示過去的習(xí)慣性動作, 但此處表示 “used to” 過去常做
fail to do sth. 未能、不能、忘記做某事項 （fail后面接動詞不定式表示否定）
He failed to see the reason why they sent him away.
collect的含義之一為“（去）取，接”
Don’t fail to collect me before you go to the party.
I’ll collect my post on my way home.
5、Armed with the new machine, a search party went into the cave hoping to find buried treasure.
如果幾個句子的主語是同一事物, 則可以把幾個句子合并為一個句子。保留一個句子做主句, 其他的變成非謂語動詞。非謂語動詞采用何種形式, 則根據(jù)其與主語的關(guān)系, 如果是主動關(guān)系, 用-ing, 被動關(guān)系, 則用動詞的-ed形式
主句與其他句子的位置安排要保持句子的平衡, 還要注意動作的連貫
The boy went home. The boy was crying. The boy was beaten.
=Beaten by sb, the boy went home, crying.
arm(ed) with 可以表示“帶著、裝著、穿著”等
Don’t worry. I’m armed with an umbrella.
You’d better arm yourself with a warm coat.
6、Very excited, the party dug a hole two feel deep.
Very exciting, … 形容詞短語做狀語
Tired of sleeping on the floor, …
Tired, I went home./ I went home tired.句子順序不同, 表達(dá)的意思也不同
two feet deep“數(shù)詞+量詞+形容詞”結(jié)構(gòu)可以做定語； 也可以做表語
I am five years old.
The street is five meters wide.
long/wide/high/deep，人有多高用 “tall”
7、In spite of this, many people are confident that 'The Revealer' may reveal something of value fairly soon.
in spite of / though / even if 盡管
something of value
of表示其所修飾的名詞具有某種性質(zhì)、狀況，of加名詞往往讓人聯(lián)想這名詞對應(yīng)的形容詞
The news is of great importance to us.
of value＝valuable 有價值的
of small value 價值很小(= almost worthless)
形容詞要放在不定代詞的后邊
something important =something of importance
someone patient =someone of patience
【Summary writing】
1 Is‘The Revealer’a new machine or an old machine?Is it used for detecting buried gold or not?(which)
2 Did a search party use this machine or not? Where did they try to find gold recently?(Using this machine...)
3 Did they examine the cave thoroughly or not? Did they only find a small gold coin?Was it valuable or was it practically worthless?(Although...which)
4 Do many people believe that the machine may reveal something of value soon or not?(However)
1、machine 作為先行詞, it 指代 machine, 會被which 所取代
2、Using this machine, a seach party tried to find the gold in came near the seashore.
3、Although 會引導(dǎo)讓步狀語從句, which 會引導(dǎo)一個定于從句
Although they examined the came thoroughly ,they only found a small gold coin which was practically worthless.
4、however 放在句首句中都可以, 要用逗號隔開
【Key structures】
表示過去習(xí)慣性動作
當(dāng)我們提到過去某一特定時間時, 我們有時可用would來代替used to，有時則不可以，而且would需要指出具體時間，used to則不需要。
當(dāng)used to暗示與現(xiàn)在的對照時，不可用would替換：
I used to drink heavily, but I have given up drinking now.
I never used to eat a large breakfast, but I do now.
當(dāng)used to描寫過去的狀態(tài)時，也不可與would互換，would只表示過去特有的習(xí)慣或行為：
This sort of novel used to be very popular. 這種小說過去很流行.
I used to be a waiter, but now I’m a taxi-driver.
當(dāng)used to不強(qiáng)調(diào)與現(xiàn)在的對比時，可與would互換。但一個故事開頭時不用would，必須首先用一般過去時或used to描述背景，然后用would表示習(xí)慣性動作：
When I was a boy we always spent/used to spend our holidays on a farm. We would get up at 5 and we would help milk the cows.
【Special difficulties】
use, be used to, used to
use vt. 用，使用，運(yùn)用，應(yīng)用
May I use your dictionary/car?
I don’t know how to use the word.
be used to 習(xí)慣于（后面跟名詞或動名詞，be也可用get等代替）
I soon got used to getting up early when I started working as a baker.
I’m used to shopping alone.
used to 過去習(xí)慣……（表示過去有而現(xiàn)在通常已不存在的習(xí)慣，只用于一般過去時，后面只能跟動詞不定式）
I used to get up early when I worked as a baker, but I don’t have to get up early now.
You didn’t use to smoke.
Gold and Golden
glod
① n. 金，黃金，金幣，金塊
He loves gold more than anything else.
② adj. 金的
When Frank retired, they gave him a gold watch.
All that glitters is not gold. （all…is not… 不是所有的，部分否定 not all）
golden adj. 金色的，（機(jī)會等）非常好的，興盛的
As the sun set, the sky became golden.
As he grew older, he always thought about the golden days of his life.
You’ve missed a golden chance to make a lot of money.
【Multiple choice questions】
3‘The Revealer’has been used for ___b___gold.
a.to detect b.detecting c.detect d. detected
介詞后面要加v+ing形式
“被用來做某事”有兩種表達(dá)方式：如果跟名詞相連說be used for sth.；如果跟動詞相連說be used to do ，be used for +Ving
4 Pirates used to hide gold there. ___d___.
a. and they always do b.and they still do
c. and they still do sometimes d.that's what they would do
That’s what 那就是……事
題目 “Pirates used to hide gold there, .....” 應(yīng)該用句號, 而不應(yīng)該用逗號
兩個句子中間必須加 “and 或but” 等連詞, 或是用句號隔開。一句話當(dāng)中只有一個主語, 一個動詞, 叫簡單句，出現(xiàn)兩個以上的動詞要用連詞連接。兩個句子可以是主從句，可以把一個動詞用為動詞, 而把其他的動詞改裝為非謂語動詞
7 How ___c___was the hole?
a.deeply b.depth c.deep d.down
deeply adv.；depth n.；deep adj.&adv.；down adv.
用什么詞看它的陳述句用什么詞
8‘The Revealer’is a very good ___a___.
a.machine b.engine c.machinery d.mechanic
machine [mE5Fi:n] n. 機(jī)器（可數(shù)名詞）
engine [5endVin] n. 發(fā)動機(jī)
machinery[[mE5Fi:nEri] n. [總稱] 機(jī)器, 機(jī)械 機(jī)器(總稱, 一般后邊不會加s, 前面也不加a)
mechanic [mi5kAnik] n. 技工, 機(jī)修工, 機(jī)械士
revealer n. 探測器
10 The coin was almost worthless. So it was of small ___d___.
a.worthy b.honour c.price d.value
of value = valuable
of small value＝worthless 不值錢的
of great value 非常值錢的 （介詞短語修飾名詞時放在其后面）
【New words and expressions】（19）
gold n. 金子
mine n. 礦
treasure n. 財寶
revealer n. 探測器
invent v. 發(fā)明
detect v. 探測
bury v. 埋藏
cave n. 山洞
seashore n. 海岸
pirate n. 海盜
arm v. 武裝
soil n. 泥土
entrance n. 入口
finally adv. 后
worthless adj. 毫無價值的
thoroughly adv. 徹底地
trunk n. 行李箱
confident adj. 有信心的
value n. 價值
★gold[^Euld] n. 金子
sth. be made of gold ……由金子做成的
gold watch；gold ring；golden sun 金色的太陽
golden [5^EuldEn] adj. 金色的, 寶貴的
Silence is golden. 沉默是金
golden opportunity 寶貴的機(jī)會 (opportunity [7CpE5tju:niti] n. 機(jī)會, 時機(jī))
golden sentence 黃金句型
I am honoured to have the opportuneity to do sth.
I am glad to have the golden opportunity to do sth.
I am glad to have the golden opportunity to stay with you.
goldfish n. 金魚
platinum [5plAtinEm] n. 白金, 鉑
★treasure n. 財寶 (為總稱, 沒有復(fù)數(shù))
‘treasure island’ 《金銀島》
jewel [5dVu:El] n. 寶石 珠寶, (可數(shù))
jewelry [5dVu:ElrI] n. 珠寶, 珠寶類 珠寶(總稱, 不可數(shù))
I have some jewels. = I have some jewelry.
diamond n. 鉆石
jade [dVeid] n. 碧玉 (不可數(shù)名詞)
jade palace 翠宮飯店
★revealer n. 探測器
reveal v. 揭示
★invent v. 發(fā)明
invention n. 發(fā)明
★detect v. 探測
detective n. 偵探
★pirate n. 海盜
pirate [5paiErit] n. 海盜, 盜印者, 盜版者, 侵犯專利權(quán)者
vt. 盜印, 盜版, 掠奪, 翻印 vi.做海盜
★arm v. 武裝
① n. 手臂；武器
hold one's arm
Farewell! Arms 永別了, 武器
farewell [5fZE5wel] int. 再會,別了!(常含有永別或不容易再見面的意思)
② v. 武裝
Soldiers should be armed well. 士兵應(yīng)該要很好的武裝。
be armed with … 用……來武裝
The youth should be armed with knowledge. 年輕人應(yīng)該用知識武裝自己
The teacher should be patient. =The teacher should be armed with patience.
be covered with 被……覆蓋
army n. 軍隊
★soil n. 泥土
soil n. 土壤 (能生長植物的地方)
earth n. 泥土 (泥巴)
★entrance n. 入口
entrance of/to… ……的入口
entrance of the park ； entrance to the park
exit [5eksit, -zit] n. 出口, 太平門, 退場, 去世；vi. 退出, 脫離, 去世
★thoroughly adv. 徹底地
completely/thoroughly/totally
★confident n. 有信心的
be confident of doing sth. 有信心做……
be confident that +從句 有信心做……
confidence n. 信心
【Text】
Dreams of finding lost treasure almost came true recently. A new machine called 'The Revealer' has been invented and it has been used to detect gold which has been buried in the ground. The machine was used in a cave near the seashore where -- it is said -- pirates used to hide gold. The pirates would often bury gold in the cave and then fail to collect it. Armed with the new machine, a search party went into the cave hoping to find buried treasure. The leader of the party was examining the soil near the entrance to the cave when the machine showed that there was gold under the ground. Very excited, the party dug a hole two feel deep. They finally found a small gold coin which was almost worthless. The party then searched the whole cave thoroughly but did not find anything except an empty tin trunk. In spite of this, many people are confident that 'The Revealer' may reveal something of value fairly soon.
參考譯文
近, 找到失蹤寶藏的夢想差一點兒變成現(xiàn)實. 一種叫 “探寶器” 的新機(jī)器已經(jīng)發(fā)明出來, 并被人們用來探測地下埋藏的金子. 在靠近海邊的一個據(jù)說過去海盜常在里面藏金子的巖洞里, 這種機(jī)器被派上了用場. 海盜們過去常把金子埋藏在那個洞里, 可后來卻沒能取走. 一支用這種新機(jī)器裝備起來的探寶隊進(jìn)入了這個巖洞, 希望找到埋藏著的金子. 當(dāng)這個隊的隊長正在檢查洞口附近的土壤時, 那臺機(jī)器顯示出它的下面埋有金子. 隊員們異常激動, 就地挖了一個兩英尺深的坑, 但后找到的是一枚幾乎一錢不值的小金幣. 隊員們接著又把整個洞徹底搜尋了一遍, 但除了一只空鐵皮箱外什么也沒找到. 盡管如此, 很多人仍然相信 “探寶器” 很快就會探出值錢的東西來.
【課文講解】
1、Dreams of finding lost treasure almost came true recently.
★dream n. 夢；v. 做夢
① n. 夢想
dreams come true 夢想成真
dreams ended 夢想破滅了, 夢斷了
dream of … ……的夢
Dream of flying in the sky comes true.
② v. 做夢
dream of doing sth.
I dream of flying in the sky.(dream v)
come true 變成現(xiàn)實，（預(yù)言、期望等）成為事實，（愿意）實現(xiàn)
His dream to travel around the world at last came true.
2、A new machine called 'The Revealer' has been invented and it has been used to detect gold which has been buried in the ground.
一句話中只有一個動詞, 如果再出現(xiàn)動詞, 可以用and并列連接, 也可以變成復(fù)合句, 用when, because連接, 還可以使這個動詞表示動詞意思, 但不做謂語, 即非謂語動詞
過去分詞做定語, 表示 “被”，如ploughed field
n. +called 被稱之為……的……（如果用短語修飾其他詞, 則把短語放在被修飾詞的后邊）
the plane called a “Pilatus Porter”
be used to do sth. 被用來……
used to do 過去常常
同位語從句中的引導(dǎo)詞只有一個that，不會用which
in the ground (更習(xí)慣于用 “under the ground” )
3、The machine was used in a cave near the seashore where -- it is said -- pirates used to hide gold.
it is said是插入語，當(dāng)“據(jù)說”講。
where = in which翻譯時譯為 “在那兒”，修飾 cave；一個地點狀語從句
This is the river where I swim.
4、The pirates would often bury gold in the cave and then fail to collect it.
would表示過去的習(xí)慣性動作, 但此處表示 “used to” 過去常做
fail to do sth. 未能、不能、忘記做某事項 （fail后面接動詞不定式表示否定）
He failed to see the reason why they sent him away.
collect的含義之一為“（去）取，接”
Don’t fail to collect me before you go to the party.
I’ll collect my post on my way home.
5、Armed with the new machine, a search party went into the cave hoping to find buried treasure.
如果幾個句子的主語是同一事物, 則可以把幾個句子合并為一個句子。保留一個句子做主句, 其他的變成非謂語動詞。非謂語動詞采用何種形式, 則根據(jù)其與主語的關(guān)系, 如果是主動關(guān)系, 用-ing, 被動關(guān)系, 則用動詞的-ed形式
主句與其他句子的位置安排要保持句子的平衡, 還要注意動作的連貫
The boy went home. The boy was crying. The boy was beaten.
=Beaten by sb, the boy went home, crying.
arm(ed) with 可以表示“帶著、裝著、穿著”等
Don’t worry. I’m armed with an umbrella.
You’d better arm yourself with a warm coat.
6、Very excited, the party dug a hole two feel deep.
Very exciting, … 形容詞短語做狀語
Tired of sleeping on the floor, …
Tired, I went home./ I went home tired.句子順序不同, 表達(dá)的意思也不同
two feet deep“數(shù)詞+量詞+形容詞”結(jié)構(gòu)可以做定語； 也可以做表語
I am five years old.
The street is five meters wide.
long/wide/high/deep，人有多高用 “tall”
7、In spite of this, many people are confident that 'The Revealer' may reveal something of value fairly soon.
in spite of / though / even if 盡管
something of value
of表示其所修飾的名詞具有某種性質(zhì)、狀況，of加名詞往往讓人聯(lián)想這名詞對應(yīng)的形容詞
The news is of great importance to us.
of value＝valuable 有價值的
of small value 價值很小(= almost worthless)
形容詞要放在不定代詞的后邊
something important =something of importance
someone patient =someone of patience
【Summary writing】
1 Is‘The Revealer’a new machine or an old machine?Is it used for detecting buried gold or not?(which)
2 Did a search party use this machine or not? Where did they try to find gold recently?(Using this machine...)
3 Did they examine the cave thoroughly or not? Did they only find a small gold coin?Was it valuable or was it practically worthless?(Although...which)
4 Do many people believe that the machine may reveal something of value soon or not?(However)
1、machine 作為先行詞, it 指代 machine, 會被which 所取代
2、Using this machine, a seach party tried to find the gold in came near the seashore.
3、Although 會引導(dǎo)讓步狀語從句, which 會引導(dǎo)一個定于從句
Although they examined the came thoroughly ,they only found a small gold coin which was practically worthless.
4、however 放在句首句中都可以, 要用逗號隔開
【Key structures】
表示過去習(xí)慣性動作
當(dāng)我們提到過去某一特定時間時, 我們有時可用would來代替used to，有時則不可以，而且would需要指出具體時間，used to則不需要。
當(dāng)used to暗示與現(xiàn)在的對照時，不可用would替換：
I used to drink heavily, but I have given up drinking now.
I never used to eat a large breakfast, but I do now.
當(dāng)used to描寫過去的狀態(tài)時，也不可與would互換，would只表示過去特有的習(xí)慣或行為：
This sort of novel used to be very popular. 這種小說過去很流行.
I used to be a waiter, but now I’m a taxi-driver.
當(dāng)used to不強(qiáng)調(diào)與現(xiàn)在的對比時，可與would互換。但一個故事開頭時不用would，必須首先用一般過去時或used to描述背景，然后用would表示習(xí)慣性動作：
When I was a boy we always spent/used to spend our holidays on a farm. We would get up at 5 and we would help milk the cows.
【Special difficulties】
use, be used to, used to
use vt. 用，使用，運(yùn)用，應(yīng)用
May I use your dictionary/car?
I don’t know how to use the word.
be used to 習(xí)慣于（后面跟名詞或動名詞，be也可用get等代替）
I soon got used to getting up early when I started working as a baker.
I’m used to shopping alone.
used to 過去習(xí)慣……（表示過去有而現(xiàn)在通常已不存在的習(xí)慣，只用于一般過去時，后面只能跟動詞不定式）
I used to get up early when I worked as a baker, but I don’t have to get up early now.
You didn’t use to smoke.
Gold and Golden
glod
① n. 金，黃金，金幣，金塊
He loves gold more than anything else.
② adj. 金的
When Frank retired, they gave him a gold watch.
All that glitters is not gold. （all…is not… 不是所有的，部分否定 not all）
golden adj. 金色的，（機(jī)會等）非常好的，興盛的
As the sun set, the sky became golden.
As he grew older, he always thought about the golden days of his life.
You’ve missed a golden chance to make a lot of money.
【Multiple choice questions】
3‘The Revealer’has been used for ___b___gold.
a.to detect b.detecting c.detect d. detected
介詞后面要加v+ing形式
“被用來做某事”有兩種表達(dá)方式：如果跟名詞相連說be used for sth.；如果跟動詞相連說be used to do ，be used for +Ving
4 Pirates used to hide gold there. ___d___.
a. and they always do b.and they still do
c. and they still do sometimes d.that's what they would do
That’s what 那就是……事
題目 “Pirates used to hide gold there, .....” 應(yīng)該用句號, 而不應(yīng)該用逗號
兩個句子中間必須加 “and 或but” 等連詞, 或是用句號隔開。一句話當(dāng)中只有一個主語, 一個動詞, 叫簡單句，出現(xiàn)兩個以上的動詞要用連詞連接。兩個句子可以是主從句，可以把一個動詞用為動詞, 而把其他的動詞改裝為非謂語動詞
7 How ___c___was the hole?
a.deeply b.depth c.deep d.down
deeply adv.；depth n.；deep adj.&adv.；down adv.
用什么詞看它的陳述句用什么詞
8‘The Revealer’is a very good ___a___.
a.machine b.engine c.machinery d.mechanic
machine [mE5Fi:n] n. 機(jī)器（可數(shù)名詞）
engine [5endVin] n. 發(fā)動機(jī)
machinery[[mE5Fi:nEri] n. [總稱] 機(jī)器, 機(jī)械 機(jī)器(總稱, 一般后邊不會加s, 前面也不加a)
mechanic [mi5kAnik] n. 技工, 機(jī)修工, 機(jī)械士
revealer n. 探測器
10 The coin was almost worthless. So it was of small ___d___.
a.worthy b.honour c.price d.value
of value = valuable
of small value＝worthless 不值錢的
of great value 非常值錢的 （介詞短語修飾名詞時放在其后面）