中学生世界九年级英语沪教版54制
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44. Don't jump to
conclusions
before you think twice. (conclude)
答案：conclusions
解析：jump to conclusions是固定短语，意为“草率下结论”，用名词复数形式。
45. —Are you joking? —No, I'm
serious
. (seriously)
答案：serious
解析：be动词后接形容词作表语，seriously的形容词形式是serious，意为“认真的”。
46. We should protect the
variety
of plants and animals. (vary)
答案：variety
解析：the后接名词，vary的名词形式是variety，意为“多样性”。
47. Unit 7
mainly
describes how to create comic strips. (main)
答案：mainly
解析：修饰动词describes用副词，main的副词形式是mainly，意为“主要地”。
48. Space scientists have
discovered
signs of water on Mars. (cover)
答案：discovered
解析：句意为“太空科学家已经在火星上发现了水的迹象”，cover的“发现”含义对应的动词是discover，此处是现在完成时，用过去分词discovered。
49. Mr Hu looks at
himself
in the mirror before going to work. (he)
答案：himself
解析：句意为“胡先生上班前照镜子看自己”，用反身代词himself。
The twenty-
fourth
Winter Olympics took place in early 2022. (four)
答案：fourth
解析：表示“第二十四届”用序数词fourth，twenty-fourth意为“第二十四”。
51. We're
confident
that we'll be able to make high-tech chips on its own. (confidence)
答案：confident
解析：be动词后接形容词作表语，confidence的形容词形式是confident，意为“有信心的”。
______
Neither
Jane ______
nor
Jill was a thief.
答案：Neither; nor
解析：both...and...的否定形式是neither...nor...，意为“既不……也不……”。
53. Most people hardly go to the cinema,
do they
?（补全反意疑问句）
答案：do they
解析：前半句有否定词hardly，反意疑问句用肯定形式，主语most people用they代替，谓语动词go是实义动词原形，助动词用do。
______
What
do you ______
think
of Mr Jones?
答案：What; think
解析：对人的品质提问用“What do you think of...?”，意为“你认为……怎么样？”。
55. A young man stole the woman tourist's purse. (改为被动语态) The woman tourist's purse
was stolen
by a young man.
答案：was stolen
解析：原句是一般过去时，被动语态结构是“was/were+过去分词”，主语purse是单数，用was，steal的过去分词是stolen。
56. We separate waste into different groups in order to recycle it. (保持原句意思) We separate waste into different groups
so that
we can recycle it.
答案：so that
解析：in order to do sth.表示目的，可替换为so that引导的目的状语从句，意为“为了，以便”。
57. Nick got lost and wondered where he should go next. (改为简单句) Nick got lost and wondered ______ ______ go next.
答案：where to
解析：“where he should go”可简化为“where to go”，是“疑问词+不定式”结构。
58. her illness, come to school, Joyce, because of, didn't (连词成句)
答案：Joyce didn't come to school because of her illness.
解析：because of后接名词短语her illness，“didn't come to school”是谓语部分，主语是Joyce，按此逻辑组合成句。
