第四章单元测试

当前位置：首页 ＞课程 ＞科技英语语法

1、This company was the first ____ portable radios as well as cassette tape recorders in the world.

A、produced
B、producing
C、to produce
D、having produced

参考答案：请扫码使用小程序查看答案

2、The purpose of new technology is to make life easier, ____it more difficult.

A、not make
B、not to make
C、not making
D、nor to make

参考答案：请扫码使用小程序查看答案

3、I fell down and broke three of my teeth. I wonder how many times I have to come here and get my false teeth

A、fixed
B、to fix
C、fixing
D、fix

参考答案：请扫码使用小程序查看答案

4、 the house on fire, he dialed 119.

A、Having seen
B、Seeing
C、Being seen
D、To see

参考答案：请扫码使用小程序查看答案

5、Mark often attempts to escape ____ whenever he breaks traffic regulations.

A、having been fined
B、being fined
C、to have been fined
D、to be fined

参考答案：请扫码使用小程序查看答案

6、It is our purpose in this section to introduce the basic meaning of the solution of a differential equation. 下划线部分在句中做。

A、宾语
B、定语
C、主语
D、状语

参考答案：请扫码使用小程序查看答案

7、与电压源相连的灯形成一个简单的电路。A lamp ____to a voltage source forms a simple circuit.

A、connected
B、connecting
C、to connect
D、connect

参考答案：请扫码使用小程序查看答案

科技英语语法