要背就背有用单词词汇第21课单词卡片_要背就背有用单词单词卡_要背就背有用单词在线背单词_要背就背有用单词单词卡记忆法

1/20 报错

scientist [ˈsaɪəntɪst]

释义：: n.(自然)科学家

构词：: scient[adj.有知识的, 有技巧的]+ist专家或人→n.科学家

例句：: He is a black scientist.
他是一位黑人科学家。换一句; She has become a famous scientist.
她成为著名科学家。换一句; the cartoon figure of the mad scientist working in his laboratory
疯狂的科学家在实验室工作的卡通形象换一句

您还可以临摹下单词：

2/20 报错

rear [rɪə(r)]

释义：: n.后部，后面
vt.抚养，饲养；

例句：: We had to rear it in a nursery and plant it out.
我们不得不在苗棚里培育它，然后再把它移植出来。换一句; The hall is in the rear of the building.
礼堂在大楼的后部. 换一句; I got a ding in my rear fender.
我汽车后面的挡泥板撞瘪了一处。换一句

您还可以临摹下单词：

3/20 报错

rice [raɪs]

释义：: n.稻；稻米,大米
vt.筛选

例句：: rice, flour and other basic commodities
稻米、面粉和其他基本商品换一句; Rice flour makes the cake less likely to crumble.
这种糕饼用米粉做不那么容易碎。换一句; a few grains of rice
几粒大米换一句

您还可以临摹下单词：

4/20 报错

rubble [ˈrʌbl]

释义：: n.（一堆）碎石，瓦砾

例句：: After the earthquake,it took months to clean up the rubble.
地震后，花了数月才清理完瓦砾。换一句; After the war many cities were full of rubble.
战后许多城市到处可见颓垣残壁。换一句; The roof collapsed in a roar of rock and rubble.
屋顶轰隆一声塌了下来，碎石瓦砾落了一地。换一句

您还可以临摹下单词：

5/20 报错

run [rʌn]

释义：: adj.融化的；浇铸的；跑的筋疲力尽的
vt.使奔跑；使…快速移动；运行，经营；划
vi.（工作等）进行；延续；逃跑；行驶
n.奔跑；行程；放映期；一系列
vt.&vi.跑；移动；（使）流动

例句：: The system has the ability to run more than one program at the same time.
该系统能够同时运行一个以上的程序。换一句; I'll run ahead and warn them.
我要跑在前头，警告他们。换一句; Molten salt flowing through the receiver is heated to run a generator.
融化的盐水流过这个收集塔,加热后,推动发电机发电. 换一句

您还可以临摹下单词：

6/20 报错

satellite ['sætəlaɪt]

释义：: n.卫星

例句：: The moon is a satellite of the earth.
月球是地球的一颗卫星。换一句; A man-made satellite has been launched.
人造卫星上天。换一句; She showed us a strange contraption that looked like a satellite dish.
她给我们看了一个奇怪的玩意儿，样子像碟形卫星信号接收器。换一句

您还可以临摹下单词：

7/20 报错

science fiction [ˈsaiəns ˈfikʃən]

释义：: 科幻小说

例句：: This is not science fiction.
这可不是科幻小说。换一句; His story sounds like science fiction.
他的故事听起来像科幻小说。换一句; a devotee of science fiction
科幻小说的狂热爱好者换一句

您还可以临摹下单词：

8/20 报错

season [ˈsi:zn]

释义：: v.调味，使...适用
n.季节，时期；

例句：: Autumn is a wonderful season.
秋天是极好的季节。换一句; Spring is the first season.
春天是第一个季节。换一句; This is the best season for a ramble in the suburbs.
这是去郊区漫游的最好季节. 换一句

您还可以临摹下单词：

9/20 报错

shooting star [ˈʃu:tɪŋ stɑ:]

释义：: 流星，折瓣花（产于北美）

例句：: Last night we saw a shooting star.
昨晚我们看见了一颗流星。换一句; A shooting star lightened the sky.
一颗流星划亮了天空. 换一句; Before dawn, the sky cleared and a shooting star streaked overhead.'see that ?
天色欲曙时,阴云消散,一碧万顷,只见一颗流星从头顶划落. 换一句

您还可以临摹下单词：

10/20 报错

sleet [sli:t]

释义：: v.下雨雪，下冰雹
n.雨雪；

例句：: There was a great deal of sleet last night.
昨夜雨夹雪下得真大。换一句; When winter comes,we get sleet and frost.
冬天来到时我们这儿会有雨夹雪和霜冻。换一句; He destroyed their vines with hail and their sycamore figs with sleet.
他降冰雹打坏他们的葡萄树.下严霜打坏他们的桑树. 换一句

您还可以临摹下单词：

11/20 报错

smallholding [ˈsmɔ:lhəʊldɪŋ]

释义：: n. 小农地, 小农场

例句：: He contracted 1994 ten mus of barren mountain after the village do a smallholding.
1994年他承包了村后十几亩荒山办起一个小农场. 换一句

您还可以临摹下单词：

12/20 报错

smog [smɒɡ]

释义：: n.烟雾 (由smoke+fog合成的词)

例句：: Smog blankets the city.
烟雾笼罩着这个城市。换一句; The sky over the city was overspread with a heavy smog.
城市上空罩上了一层烟雾。换一句; attempts to reduce smog caused by traffic fumes
旨在降低车辆尾气造成的烟雾的措施换一句

您还可以临摹下单词：

13/20 报错

solar ['səʊlə(r)]

释义：: n.日光浴室
adj.太阳的，日光的；利用太阳能的；根据太阳决定或测定的

构词：: sol太阳+ar……的→adj.太阳的,日光的

例句：: The solar system was formed 4.5 billion years ago.
太阳系是四十五亿年前形成的。换一句; The time when a solar eclipse will occur can be calculated.
日食发生的时间可以推算出来。换一句; The final solar convulsions will wipe out all life on the planet.
太阳的最后灾变将把地球上的一切生命消灭干净. 换一句

您还可以临摹下单词：

14/20 报错

solar system [ˈsəulə ˈsistəm]

释义：: 太阳系

例句：: The solar system was formed 4.5 billion years ago.
太阳系是四十五亿年前形成的。换一句; Neptune is the eighth planet of our solar system.
海王星是我们太阳系里的第八颗行星。换一句; the heliocentric model of the solar system
太阳系的日心模型换一句

您还可以临摹下单词：

15/20 报错

source [sɔ:s]

释义：: n.来源，水源；原始资料

例句：: They mentioned you as a good source of information.
他们说你消息灵通。换一句; All works of art have life as their source.
一切文艺创作都来源于生活。换一句; evidence from an unimpeachable source
来源可靠的证据换一句

您还可以临摹下单词：

16/20 报错

South America

释义：: n.南美洲

例句：: The family finally settled in South America.
这家人最后在南美定居下来。换一句; What part of South America did she come from?
她出生在南美洲的哪个地方？换一句; the animals and birds of South America
南美的鸟兽换一句

您还可以临摹下单词：

17/20 报错

southern hemisphere [ˈsʌðən ˈhemiˌsfiə]

释义：: n. 南半球

例句：: This animal is to be found only in the Southern Hemisphere.
这种动物只有在南半球才能找到. 换一句; What is the largest city in the southern hemisphere?
南半球上哪个城市最大? 换一句; Geographically, this country is located in the southern hemisphere.
在地理上, 这个国家是位于南半球. 换一句

您还可以临摹下单词：

18/20 报错

space station [speis ˈsteiʃən]

释义：: 太空站

例句：: I've just made this model of the space station.
这是我刚做的宇宙空间站模型。换一句; Equipment on the space station is teleoperated from Earth.
空间站上的设备是从地球遥控的。换一句; They have built another space station.
他们又建了一个太空站. 换一句

您还可以临摹下单词：

19/20 报错

spacecraft [ˈspeɪskrɑ:ft]

释义：: n.太空船，宇宙飞船

例句：: There're three astronauts in the spacecraft.
在这艘宇宙飞船里有三名宇航员。换一句; The spacecraft rounded the moon.
宇宙飞船环绕月球飞行。换一句; The two spacecraft rendezvoused successfully.
两艘太空船成功地会合. 换一句

您还可以临摹下单词：

20/20 报错

spaceship [ˈspeɪsʃɪp]

释义：: n.太空船，宇宙飞船

例句：: The spaceship leaves the earth at very high speed.
宇宙飞船高速离开地球。换一句; We were in a spaceship.
我们在宇宙飞船上。换一句; Another spaceship has gone up.
又一艘太空船上天了. 换一句

您还可以临摹下单词：

小易英语背单词