初三 下学期 第9课
1/20
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- 释义：
- adj. 在水下的; 在水中的
- 例句：
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The ship was underwater when they reached her.
他们赶到那艘船时,船已沉到水里了. 换一句 -
A game that is very popular with these young swimmers is the underwater tricycle race.
这些幼小的游泳运动员非常喜爱的一项运动就是水下三轮车比赛. 换一句 -
To do this, scientists have to devise Methods: Using radar and underwater television.
为此, 科学家还要设计出使用雷达和水下电视的方法. 换一句
您还可以临摹下单词：
underwater
2/20
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- 释义：
- n. (总称)植物; 草木
- 例句：
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The air was filled with the overpowering stench of decomposing vegetation.
空气中充满了令人难以忍受的腐烂植物的恶臭. 换一句 -
As we drove towards the desert, the vegetation became sparse.
我们驱车前往沙漠, 沿途的草木渐渐变得稀疏. 换一句 -
The sparse vegetation will only feed a small population of animals.
稀疏的植物只够喂养少量的动物. 换一句
您还可以临摹下单词：
vegetation
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5/20
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- 释义：
- v. 发现; 发觉
- 构词：
- dis否定,不,消失掉+cover盖→把盖揭开→发现
- 例句：
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He was pleasantly surprised to discover that he was no longer afraid.
让他惊喜的是他发现自己不再害怕了. 换一句 -
They discover that the new teacher is a martinet.
他们发现新来的老师非常严格. 换一句 -
They were thrilled to discover a perfectly preserved specimen of Roman pottery.
他们因发现了一件保存完好的罗马时代陶器而欣喜若狂. 换一句
您还可以临摹下单词：
discover
6/20
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7/20
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- 释义：
- 现在进行时
- 例句：
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This is an example of passive voice in present progressive.
本句为现在进行时的被动语态. 换一句 -
Complete the telephone conversation using the present progressive form of the verbs in brackets.
用括号里动词的现在进行时形式完成电话会话. 换一句 -
The tense is present perfect progressive.
进行时)(现在,过去,将来,现在完成-进行时 ) 换一句
您还可以临摹下单词：
present progressive
8/20
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- 释义：
- 一般现在时
- 例句：
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Read the passage and choose in the present simple tense and in the present continuous tense.
复习一般现在时的用法和现在时进行比较,通过观察、选择,明了其特征. 换一句 -
We will present here a simple negative - ion scheme.
我们将在此介绍一下简单的负离子的体系. 换一句 -
Use the simple present tense of the verbs in brackets.
用括号里的动词的一般现在时形式. 换一句
您还可以临摹下单词：
present simple
9/20
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10/20
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11/20
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- 释义：
- adj. 合适的; 适宜的; 恰当的
- 构词：
- suit[v.合适, 适合, 相配]+able……的→adj.适当的, 相配的
- 例句：
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They don't think this article is suitable for publication.
他们认为这篇文章不宜发表. 换一句 -
I don't think I should be suitable for the post.
我认为这个岗位对我不合适. 换一句 -
A suitable answer has already been put forward by the chairwoman.
一个合适的解决办法已由女主席提出. 换一句
您还可以临摹下单词：
suitable
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13/20
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14/20
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15/20
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16/20
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17/20
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18/20
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- 释义：
- n. 表达; 表示; 措辞
- 构词：
- express表达,表示+ion→n.表达;表情;声调;腔调;榨出;措词;式;符号
- 例句：
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He listened to her story with a stony expression.
他带着冷漠的表情听她讲经历. 换一句 -
The police offered no expression of regret at his wrongful arrest.
警方对错抓他没表示出丝毫歉意. 换一句 -
This expression gave temporary meaning to a set of features otherwise nondescript.
这一词语给整套节目以暂时的意义,否则毫无特色. 换一句
您还可以临摹下单词：
expression
19/20
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- 释义：
- v. 再循环; 回收利用
- 构词：
- re再+cycl圆,环+e→再转圈→回收
- 例句：
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Chemical constantly circulate or recycle in the system.
化学物质在系统中不断循环或回流. 换一句 -
The sole reason the Recycle Bin exists is to implement an undo facility for deleted files.
回收站存在的唯一理由就是实现文件删除的撤销工具. 换一句 -
This sort of recycle of waste materials is a way of reducing pollution.
这种废材料的循环使用是减少污染的一个途径. 换一句
您还可以临摹下单词：
recycle
20/20
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- 释义：
- v. build的过去式和过去分词
- 构词：
- build[[建造, 建筑]]ナ胶凸シ执省鷅uilt建造成的
- 例句：
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They built dykes and dam to hold back the rising flood waters.
他们修筑了堤坝来阻挡上涨的洪水. 换一句 -
The 30 mph speed restriction applies in all built - up areas.
每小时限速30英里适用于所有建筑物聚集区. 换一句 -
This part of the hospital was built on later.
医院的这个部分是后来增建的. 换一句
您还可以临摹下单词：
built
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