Jenny was very sad over the loss of  the photos she had shot in Canada,          this was a memory she especially treasured.

as

if

when

where

考查连词辨析。句意：珍妮对失去她在加拿大拍摄的照片感到非常悲伤，因为这是她特别珍视的记忆。as 引导原因状语从句，表示“由于”；if“如果”；when“当......什么时候”；where“在哪里”。根据句意，前后文是因果关系，故选A项。

Suddenly a good idea occurred to her, but she couldn't find any paper           .

 to write

to write on

written

writing on

考查了非谓语动词。句意：她突然有了一个好主意，但是她找不到纸来写下它。根据句意可知，这里用不定式表目的，而且固定搭配是write sth on the paper。故选B项。

I drink a cup of coffee           ; but usually I take tea.

frequently

often

constantly

occasionally

考查副词词义辨析。句意：我偶尔喝一杯咖啡，但我通常喝茶。A. frequently频繁地；B.often经常地；C.constantly连续不断地；D.occasionally偶尔地。but 表转折关系；根据后半句的usually,前面用occasionally,与usually意思相对。故选D项。

True happiness does not            the possession of money, but the joy of achievement.

contribute to

lie in

result in 

add to

考查动词短语辨析。句意：真正的幸福不在于拥有钱，而在于成功的喜悦感。contribute to有助于；lie in 在于；result in 导致；add to增加。结合语境可知，此处指“真正的幸福不在于有多少钱”。故选B项。

When Huawei P20 came out,         people couldn't wait to buy one in our town.

thousand

thousands

thousand of

thousands of

考查数词的用法。句意：当华为P20上市时，成千上万的人迫不及待的想在我们镇上买一台。thousnad意思是“千”，其前有具体数词修饰时，用其单数形式；当其前没有具体数词修饰时，用其复数形式，且与of 连用，thousands of“成千上万的”，这里没有具体数词修饰。故选D项。

Lucy tried to help, but she was          as if she was  interfering, not helping.

dynamic

compulsory

scared

clumsy

考察形容词。句意：露西想要帮忙，但她笨手笨脚，好像在干涉别人，而不是在帮忙。A.dynamic动态的；B. compulsory 义务的；C.scared 害怕的；D.clumsy笨拙的。结合后文好像是在干涉别人，而不是在帮忙。可知露西笨手笨脚的。故选D项。