《2025年练习部分高中英语选择性必修第一册沪教版》

4 Match the words and phrases in column A to the ones in column B to describe the percentages in brackets. Some words and phrases can be matched in more than one way. The first one has been done as an example.
A: well over, just under, around, nearly, just over
B: half, a quarter, two-thirds, three-quarters, all
(1) Just over half / Around half of students have registered for the summer camp. (54%)
(2) ________ of students sometimes ask their parents about homework. (81%)
(3) ________ of students do their homework while listening to music. (67%)
(4) ________ students look for information online when doing their homework. (99%)
(5) ________ of students do their homework before eating dinner. (24%)
(6) ________ of students work in their bedrooms. (46%)

答案：
(2) Well over three-quarters
解析：81%超过四分之三（75%），well over表示“远远超过”，three-quarters“四分之三”，符合。
(3) Around two-thirds
解析：67%接近三分之二（约66.6%），around表示“大约”，two-thirds“三分之二”，符合。
(4) Nearly all
解析：99%接近100%，nearly all表示“几乎所有”，符合语境。
(5) Just under a quarter
解析：24%略低于四分之一（25%），just under表示“略低于”，a quarter“四分之一”，符合。
(6) Just under half / Around half
解析：46%略低于一半（50%）或大约一半，just under half“略低于一半”，around half“大约一半”，均符合。

5 Translate the sentences into English by using the words and phrases in brackets.
(1) 他坚称没有收到通知。(insist)
(2) 这个报警器可以探测煤气泄漏。(detect)
(3) 对当地文化不了解的话，要理解这个词会有点困难。(somewhat difficult)
(4) 与二十年前不同，如今超市里的加工食品种类多样，应有尽有。(widely available)
(5) 研究表明，每天吃些水果和蔬菜对健康很有好处。(highly beneficial)
(6) 她声称去过那个地方，但没几个人相信。(claim)
(7) 一些汉语方言的使用者很难分清“f”和“h”，因为他们的方言对这两个音没有区分。(distinguish)
(8) 这位年轻的教授嘴上说欢迎各种意见，但事实上他对别人的批评很敏感。(sensitive)

答案：
(1) He insists that he didn't receive the notification.
(2) This alarm can detect gas leaks.
(3) Without understanding the local culture, it is somewhat difficult to understand this word.
(4) Unlike twenty years ago, processed foods in supermarkets are now widely available in various types.
(5) Studies show that eating some fruits and vegetables every day is highly beneficial to health.
(6) She claims to have been to that place, but few people believe her.
(7) Some speakers of Chinese dialects find it difficult to distinguish between "f" and "h" because their dialects do not differentiate these two sounds.
(8) The young professor says he welcomes all kinds of opinions, but in fact, he is sensitive to others' criticism.