Question

【题目】用括号中所给动词的正确形式填空，’使短文完整。

A drone (无人机) is a remote-controlled aircraft that can carry cameras and some other things.

New technology【1】 (make) drones cheaper and easy to buy in recent years. More people use drones as a hobby, just like flying a kite. In Australia, drones 【2】 (use) to search large areas and protect animals. "You don't need 【3】 (worry) about getting attacked by crocodiles,"Dr Karen Joyce said.

But they may not be completely safe. There are more and more biologists 【4】 (use) drones and nobody really knows if they are causing harm to the animals (by scaring them).

One day, a drone 【5】 (crash) at a beach in the US, frightening visitors who were there .to take in the sunset.

Most countries have announced rules about where drones can fly. But there aren't many rules for hobby drones. "If drones become widely used in our society, there【6】 (be) a lot of problems," the lawyer Jennifer Lynch told us.

Answer 1

【答案】

【1】has made

【2】are used

【3】to worry

【4】using

【5】crashed

【6】will be

【解析】短文大意：无人机是一种遥控飞机，近年来，新技术使得无人机更便宜、更容易买到。无人机的使用对人类有有利的一面，同时也会给社会带来很多问题。

【1】句意： 近年来，新技术使得无人机更便宜、更容易买到。根据后文时间短语 in recent years可知，本句使用现在完成时态，主语是单数含义，所以助动词为has; made是make的过去分词。 故填：has made。

【2】句意：在澳大利亚，无人机用于搜索大面积区域和保护动物。根据句意可知，主语与谓语存在被动关系，且是一般现在时态；所以使用一般现在时态的被动语态are used。故填：are used。

【3】句意：“你不需要担心被鳄鱼袭击，”凯伦·乔伊斯博士说。need to do sth. 需要做某事。worry动词，担心。 故填：to worry。

【4】句意：越来越多的生物学家使用无人机，没有人真正知道它们是否会对动物造成伤害(通过恐吓它们)。use动词，用，using现在分词或动名词。根据句型：There be+sb. doing sth.，意为“有某人在做某事”，所以动词doing形式。故填：using。

【5】句意： 一天，一架无人驾驶飞机在美国的海滩上坠毁，吓坏了在场的游客。crash动词，坠落；本句描述过去发生的事情，所以谓语动词使用过去式crashed。故填：crashed。

【6】句意：如果无人机在我们的社会中得到广泛应用，就会出现很多问题。本句是if引导的条件状语从句，时态遵循“主将从现”，所以主句为“will+动词原形”。故填：will be。