2020屆高考英語完形填空專項復習1
【答案和解析】a 雖然四個選項都可與on構成搭配，但根據下文do my best at each practice session可知作者下定決心學好籃球，把精力都集中在學習籃球上。 focus on 集中精力/注意力于……
3. 由介詞＋簡單名詞構成的名詞詞組
【例3】i watched as you faced the __25._changes__of completing your studies, starting companies with dad，while still being a __26._model__ and a mom of five kids. i was exhausted just watching you __27__.(天津卷)
27. a. in danger b. in action
c. in trouble d. in charge
【答案和解析】b 根據上文語境信息，此句意思應為：光看著你不停忙碌就讓我很累。in action 在運轉中；in danger 處于危險中。in trouble 處于麻煩中； in charge負責，掌管。
4. 由動詞＋名詞構成的詞組
【例4】 now maja was ready to keep her __48__. (湖北卷)
48. a. appointment b. promise
c. record d. habit
【答案和解析】b 根據上下文語境，可得知此句含義為：如今，maja該兌現諾言了。故選keep one's promise這個詞組。
二、詞義辨析
詞義辨析主要體現于四個選項均為名詞、形容詞或副詞等。它們在完形填空20道題中常各占一道或兩道題。
1. 名詞辨析
【例1】 there are times when people are so tired that they fall asleep almost anywhere. we can see there is a lot of sleeping on the bus or train on the __21__ home from work in the evenings.
21. a. way b. track
c. path d. road
【答案和解析】a 根據上文可知，在下班回家的路上人們因工作勞累而在公交車、火車上睡著，故此處因為 ：on the way home from work。
2. 形容詞辨析
【例2】 we were thrown into the water, and dad was struggling aimlessly. at that moment, i felt fiercely __52__ of him. i swam to dad __53._quickly__ and assisted him in climbing onto the hull(船殼) of the boat.