NSE 1-5

Question 1

liquid

Answer 1

液体

Question 2

expand

Answer 2

膨胀

Question 3

contract

Answer 3

收缩

Question 4

substance

Answer 4

物质

Question 5

mixture

Answer 5

混合物

Question 6

oxygen

Answer 6

氧气

Question 7

electricity

Answer 7

电

Question 8

stage

Answer 8

阶段；时期

Question 9

conclusion

Answer 9

结论

Question 10

aim

Answer 10

目标；目的

Question 11

reaction

Answer 11

反应

Question 12

electrical

Answer 12

与电有关的；用电的

Question 13

equipment

Answer 13

设备；装备

Question 14

react

Answer 14

（化学）反应

Question 15

potassium

Answer 15

钾

Question 16

sodium

Answer 16

钠

Question 17

calcium

Answer 17

钙

Question 18

magnesium

Answer 18

镁

Question 19

aluminium

Answer 19

铝

Question 20

zinc

Answer 20

锌

Question 21

partial

Answer 21

部分的；局部的

Question 22

copper

Answer 22

铜

Question 23

oxide

Answer 23

氧化物

Question 24

rust

Answer 24

生锈

Question 25

boil

Answer 25

煮；煮沸

Question 26

ordinary

Answer 26

普通的；平常的

Question 27

steam

Answer 27

蒸汽；水汽

Question 28

float

Answer 28

漂浮

Question 29

form

Answer 29

形成

Question 30

dissolve

Answer 30

溶解；分解；分离

Question 31

balance

Answer 31

天平

Question 32

crucible

Answer 32

坩埚

Question 33

tongs

Answer 33

（复）夹子；小钳子

Question 34

flame

Answer 34

火焰

Question 35

facility

Answer 35

（常做复数）设备；工具

Question 36

lecture

Answer 36

演讲

Question 37

department

Answer 37

（大学的）科；系

Question 38

astonished

Answer 38

吃惊的；惊愕的

Question 39

add..to..

Answer 39

往...加入...

Question 40

used to

Answer 40

过去（常常）...

Question 41

in the area of

Answer 41

在...领域

Question 42

be proud of

Answer 42

为...感到骄傲

Question 43

be supposed to

Answer 43

应当；理应