现在完成时是英语中常用的一种时态，表示动作发生在过去但与现在有关。它通常由助动词"have"或"has"加上动词的过去分词构成。使用现在完成时的句子能够表达从过去某一时间点开始一直延续到现在的动作或状态，强调与现在的联系和影响。例如：“他已经吃过晚饭了。”这个句子使用了现在完成时，说明动作“吃饭”发生在过去，但对现在的状态产生了影响，表示此刻他不再需要吃饭了。现在完成时能够准确地描述动作的发生及其对现在的影响，使句子更加具体生动。
1、 Have you ever traveled on a plane?
你坐飞机旅行过吗?
2、 Have you ever been abroad?
你出国过吗?
3、 I’ve just finished reading the book、
我刚读完书。
4、 I’ve never been there、
我从来没去那里。
5、 I’ve already been there twice、
我只去过那里两次。
6、 Who has been to Hawaii? None of us has、
谁去过夏威夷?没人去过。
7、 Has anybody water-skied before?
有人之前滑过水吗?
8、 How long have you been here in Sydney?
你来悉尼多久了?
9、 I know you’ve come to see your father、
我知道你来看你的爸爸。
10、 You’ve learnt surfing from him, haven’t you?
你从他那里学的滑水，不是吗?
11、 Have you ever been to Hawaii?
你去过夏威夷吗?
12、 He has been in Honolulu ever since、
他从那以后就在檀香山。
13、 I have already won first prize in the city surfing competition、
我已经在城市的冲浪比赛中获得了第一名。
14、 I’ve been surfing every day、
我每天都冲浪。
15、 I’ve been here for two weeks already、
我已经在这里呆了两周了。
16、 How many songs has he learned so far?
他到目前为止学了多少歌了?
17、 How long have you been a member of Greener China?
你成为绿色中国的一员多久了?
18、 I’ve been with Greener China for a year、
我跟随绿色中国一年了。
19、 What have you done since you joined Greener China?
你加入绿色中国后都做了什么?
20、 Have you ever thrown any litter onto the ground?
你有没有往地上扔过东西?
21、 If your answers are No， it means that you have already helped protect our environment、
如果你的回答是否，它意味着你已经帮助保护了我们的环境。
22、 Have I ever picked up some rubbish and thrown it into a dustbin?
我有没有把垃圾捡起来扔进垃圾筒呢?
23、 Have I ever collected waste paper or bottles for recycling?
我有没有为回收而收集废旧纸张或瓶子呢?
24、 Have I ever planted any trees or flowers in or near my neighbourhood?
我有没有在社区附近种过树或花呢?
25、 If your answers are Yes，it means that you have already done something useful to improve the environment、
如果你的回答是是，它意味着你已经为保护环境做了些有用的事。
26、 After you have finished the questionnaire, you may decide if your friend is doing very well in protecting the environment、
你完成调查问卷后，你可以决定你的朋友是否在保护环境方面做得很好。
27、 Has everyone in your class written a letter to a factory to ask them to stop pouring dirty water into the river or lake nearby?
你们班的人有没有给工厂写信让他们停止向附近的河或湖排放污水?
28、 How long have you worked in this library?
你在这家图书馆工作多久了?
