U3 the world of science 单元测验

A false step and the whole gume becomes______(被动的)。

Chemistry is important for me because in the future I want to be a_____(化学家)

They have leaned the______(理论)seriously and put it into action.

They were making efforts to provide______(准确
 的)weather forecasts during the Olympic Games.

 It is a place you have to visit and the______(非凡
的)view will make you unwilling to leave.

选词填空

The discovery of the new drug is ____________(significance) for people suffering from heart disease.

The_______(origin) Venice Carnival came to an end about 200 years ago.

Honestly speaking,it's______my power to help  you solve such a difficult problem.

It has helped me become stronger, both_______(mental)and physically.

 Professor Wang said the reson for shortsightedness is comlicated and taht there is still no excellent cure _____it.

More than 100 famous films _____(show)in the city since July.

Three new schools____(open)in our city in the past five years.

It's the fit time that the old computer ______(check) since I bought it.

Great changes _________(take)place in my hometown where a lot of new houses______(build).

With the problem solved, the quality of our product______(improve）.

将句子改为被动语态

Up to now, they have completed two-thirds of the project.

将句子改为被动语态

The volunteers have sent a huge amount of teaching equipment to those primary school.

将句子改为被动语态

Since its opening ,the museum has attracted over 5 million visitors all over the world.

将句子改为被动语态

James has collected more than 2,000 dollars in the past five months.