很多考生都说害怕英语，觉得英语很难，不容易通过考试，但是参加上海自考肯定是要多多复习和练习试题的，这里求学问校上海自考网小编就整理了2021年4月上海自考英语(一)应试复习资料:第五章，供大家参考练习，也希望对大家有所帮助。
本课主要单词
1.rare adj.稀有的，难得的
a rare word〔冷僻的词〕rare metals〔稀有金属〕
a rare disease(罕见的疾病)
2.substance n.物质;实质;大意;根据
Ice，snow and water are the same substance in different forms.〔冰、雪、水是同一物质的三种不同形式。〕
What was the point of going to a lecture with little substance?
〔去听一个没有什么内容的讲座有什么意义呢?〕
What he is saying in substance is that we should take effective measures to prevent pollution.
〔他大体上说的是我们应该采取有效措施防止污染。〕
There was no substance in his complaints.〔他的抱怨没有道理。〕
3.slight adj.轻微的;纤细的
Mother said she had a slight headache.〔妈妈说她有点头疼。〕
I didn't have the slightest idea about what had happened.〔我一点都不知道发生了什么事。〕
4.extreme adj.极端的，极度的;尽头的n.极端
Extreme action will be taken if necessary.〔如有必要，我们将采取最严厉的行动。〕
His hospitality was carried to an extreme.〔他好客得过分了。〕
She found the book uninteresting to the extreme.〔她觉得那本书没意思透了。〕
extreme joy/pain〔极度的欢乐/痛苦〕an extreme of sadness〔极度伤心〕
go from one extreme to the other〔从一个极端走到另一个极端〕
go to the other extreme〔走到另一个极端〕
in the extreme〔极度，非常〕
extremes of poverty and wealth〔贫富的两极〕
5.pressure n.压力，压强
Heavy study load and great expectation from parents may give children too much pressure.
〔沉重的学习负担以及家长的过高期望可能会给孩子太大的压力。〕
He was under constant pressure from his superiors.〔他的上司不断地给他压力。〕
6.liquid adj.液体的，液态的;清澈的，明亮的n.液体
7.crack n.裂缝v.破裂;打开
His face cracked with a broad smile.〔他咧开嘴笑了。〕
The phone cracked the room's quiet.〔电话铃声打破了房间的寂静。〕
They were unable to crack a highly competitive sales market.〔他们无法打进竞争激烈的销售市场。〕
8.crust n.地壳;面包皮，外皮
It is very dangerous to walk on the thin crust of ice.〔在这样一层薄冰上行走是很危险的。〕
9.crystal n.水晶;晶粒adj.清澈透明
I've made my point crystal clear that I would never agree to such a proposal.
〔我已经表明了我的观点，绝不同意这个提议。〕
10.popular adj.流行的，大众的;普及的;受欢迎的
Popular music is well liked by young people.〔流行音乐深受年轻人的喜爱。〕
Swimming is a sport popular with people of all ages.〔游泳是老老少少都喜欢的体育运动。〕
He has always been popular with/among boys in his community.
〔他一直广受他那个社区的男孩子们的喜欢。〕
This restaurant offers meals at popular prices.〔这家饭店供应价格大众化的饭菜。〕
11.handful n.一把，一小撮
He told the doctor that his hair fell out in handfuls.(他对医生说他的头发一把一把地脱落。)
He gave me nothing except for a handful of books.〔除了少量的几本书他什么也没给我。〕
注意：一般来说，-ful是一个形容词后缀，加在名词后面可以构成形容词，比如：careful，helpful，useful，hopeful等等。而在handful这个单词中，-ful是一个名词后缀，加在某些名词的后面，表示“充满…所需的量”，比如：roomful，basketful，mouthful，spoonful等等。
12.formation n.岩层;形成，构成
Most diamonds are mined from rock formations inside the earth.
〔大多数钻石都是从地下的岩层里开采出来的。〕
The formation of good habits is very important for a child.〔好习惯的养成对孩子来说很重要。〕
13.pipe n.管子，导管;烟斗v.用管道输送
14.somewhat adv.稍微，有点
It is somewhat difficult for him to answer the question.(要他回答这个问题有点难。)
15.blast n.疾风，强风;爆炸v.炸，炸掉
A blast of cold air sent a shiver all over his body.〔一股冷气使他浑身战栗。〕
They decided to blast through the mountains.〔他们打算炸山开路。〕
16.crush v.压碎;镇压，压倒
The machine can crush rocks into powder.〔那台机器能把石头碾成粉末。〕
Can you imagine that debts are crushing them?〔你能想像到债务正压得他们喘不过气来吗?〕
17.destroy v.破坏，毁灭;消灭
18.impressive adj.给人深刻印象的，感人的
impression n.印象
impress v.给…极深的印象
I had the impression that he was a teacher.〔我记得他好像是个老师。〕
What impressed me most were the great changes in this city.〔给我印象最深的是这座城市的巨大变化。〕
19.experience n经验;经历v.经历，遭受
experienced adj.有经验的
20.immediately adv.即刻地;紧密地
immediate adj.立刻的;最接近的
He said he had to go to the hospital immediately.〔他说他得立即去医院。〕
The post office is immediately next to the bank.〔邮局紧挨着银行。〕
You have to give them an immediate reply.〔你得立刻答复他们。〕
It is necessary that you get the support from your immediate superior.〔你必须得到顶头上司的支持。〕
本课主要构词法
affixation(词缀法)
1.形容词后缀-ful beautiful，useful，
2.形容词后缀-ive impressive
3.形容词后缀-y greasy
4.名词后缀-ation combination，formation
5.名词后缀-ure pressure
6.名词后缀-y discovery
7.名词后缀-er traveler，miner
8.名词后缀-ful handful
9.副词后缀-ly finally，probably，immediately，carefully，
10.副词后缀-ward upward
课文简介
本课主要介绍了钻石的特性、形成、分布以及开采方式。读了本课，你会了解钻石的形成与数百万年前的地壳运动有关;你也会了解深受上至达官贵人下至普通百姓喜爱的“恒久远”的钻石在刚开采出来时并不光彩照人。
本课语言点
1.They are the hardest substance found in nature.
本句中found in nature是定语从句，修饰substance.定语从句中省略了that are.这种省略现象在定语从句中很常见，在前几个单元中，我们遇到过多次。请看下面的句子：
1)There are many books(that)I'd like to read.(有很多书我想看。)
2)He is a man(that)we all like and trust.(他是一个我们大家喜欢和信赖的人。)
3)This is the most interesting film(that)I have ever seen.(这是我看过的最有意思的电影)
先行词的前面有形容词最高级时，定语从句必须用that引导，而不用which.
本句中的hardest意思为“坚硬的”“坚固的”，而不是“困难的”。
mean是一个很常见的词，本句中的意思是“意味着”。mean还有“意欲，企图，打算”的意思。请看下面的句子，注意mean在各句中的意思和用法：
1)What do you mean by saying this to me?(你对我说这个是什么意思?)
2)Friendship means everything to him.(友谊对他来说意味着一切。)
3)The teacher's praise meant so much to the children.(老师的表扬对孩子们来说很重要。)
4)I'm serious about this.I mean what I say.(我对此事是认真的，我说话算数。)
5)I'm sorry，I didn't mean to hurt you.(对不起，我无意伤害你。)
6)They meant to finish the work ahead of time.(他们的打算是提前完成这项工作。)
7)I meant to call you but I forgot.(我原打算给你打电话的，但我忘记了。)
cut在前一个句子中做动词用，意思是“切割”，在后一个句子中做名词用，意思是“切面”。
3.Diamonds are made from carbon.
由……制成，可以用be made from和be made of两个词组来表达。但是be made from通常指制成品已看不出原材料是什么，而be made of可以看出该物品由什么材料制成的。
4.Scientists know that the combination of extreme heat and pressure changes carbon into diamonds.
extreme在句中做形容词用，意思是“极度的”，如：
1)Extreme cold can wake a hibernating animal.(极度的寒冷能使正在冬眠的动物苏醒。)
2)They will have to endure extreme discomfort in winter.(冬天时，他们将不得不忍受极度的不适。)
change…into意思是“把…转变为…”，如：
1)Water changes into vapour when heated.(水加热后转变为蒸气。)
2)Go to the bank and you can easily change these dollars into RMB.(你去银行就能很容易地把这些美元换成人民币。)
5.Such heat and pressure exist only in the hot，liquid mass of molten rock deep inside the earth.
请注意such与so之间的不同用法。such后面接名词，而so后面接形容词或副词。如：
1)I don't believe he could make such a mistake.(我相信他不会犯这样的错误的。)
2)How can you go out on such a rainy day?(在这样的雨天里，你怎么能出门?)
3)He spoke so fast that I couldn't follow.(他说话太快，我听不懂。)
4)I'm so glad you could come.(你能来我真高兴。)
mass在本句中的意思是“(聚成一体的)团、块”，比如：
1)a mass of hot air(一团热气)
2)a mass of sand(一堆沙)
3)Rain occurs when a mass of warm air is laden with water.(一团云聚集大量的水蒸气就形成了雨。)
Mass也可以做形容词用，意思是“群众的”、“大量的”，如：
1)a mass meeting(群众大会)
2)mass education(大众教育)
3)mass media(大众传媒)
4)Mass production could very well cut the cost.(大规模生产可以降低成本。)
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