初中英语北师大版九年级全册Lesson 22 Famous Discoveries课时练习

这是一份初中英语北师大版九年级全册Lesson 22 Famous Discoveries课时练习，共7页。试卷主要包含了单项选择，阅读理解-阅读选择，句子填空等内容，欢迎下载使用。
一、单项选择（共10小题）
1. DNA _____ in 1896.

2. —_____ is that dress?
—$99.

3. Our eyesight will becme prer and prer _____ we keep playing with phnes.

4. Tm says that he will travel all ver the wrld if he _____ enugh mney.

5. If I have time this Sunday, I _____ t the z with my friends.

6. Kitty, yu'll fail the English exam yu study hard.

7. Train hard _____ yu want t win the match next year.

8. If it _____ sunny tmrrw, we will have a picnic beside the river.

9. If yu take a vacatin this summer, s _____ I.

10. If the traffic light is red, yu _____ crss the street. It's very dangerus.

二、阅读理解-阅读选择（共1小题）
A: What are yu ding, Bb?
B: Alice, _____11_____ I'm preparing fr it.
A: Oh, Bb, what are yu hlding in yur hand?
B: I want t take sme snacks.
A: Oh, dear! _____12_____
B: What will happen if I d that?
A: _____13_____ "Dn't bring fd t the party." D yu remember the rule?
B: Oh, I d. I wn't take snacks.
A: Oh, Bb, yu shuld wear the schl unifrm.
B: Why can't I wear jeans?
A: _____14_____ It's a rule, t!
B: Can I take my mbile phne?
A: _____15_____
B: Ah, it's really bring.

三、句子填空（共5小题）
16. If yu _____ (want) t see ld machines, _____ (g) t the museum.

17. If the cmputer _____ (nt start) up immediately, _____ (wait) fr ne minute.

18. If it _____ (nt rain) tmrrw, we _____ (g) t the park.

19. _____ (hurry) up, r yu _____ (be) late.

20. If any student _____ (have) a high fever, _____ (send) him t the dctr's at nce.
答案
1•. D
【解析】
分析句子结构可知，DNA 是动作 discver 的承受者，应用被动语态，排除 A、B；由句中的时间状语 in 1896 可知，应用一般过去时。故选 D。
2•. B
【解析】
从答语“$99.”可推知，问句问的是连衣裙的价格，故选 B。
3•. C
【解析】
thugh 尽管，引导让步状语从句；unless 除非，引导条件状语从句；if 如果，引导条件状语从句；until 直到……为止，引导时间状语从句。句意：如果我们继续玩手机,我们的视力会变得越来越差。故选 C。
4•. A
【解析】
在 if 引导的条件状语从句中，用一般现在时表将来，排除 C、D；又因从句的主语为第三人称单数 he，所以选 A。
5•. D
【解析】
考查动词时态。句意：如果我本周日有时间，我会和我的朋友们一起去动物园。主句的时态应是一般将来时。
6•. D
【解析】
此题考查的是连词辨析。句意：Kitty，如果你不努力学习，你的英语考试就会不及格。because 因为，引导原因状语从句；when 当……时，引导时间状语从句；if 如果，引导条件状语从句；unless 除非，如果不，引导条件状语从句。此处表示条件。
因此，正确答案是D。
7•. A
【解析】
if 如果，引导条件状语从句；s 因此，为并列连词；thugh 尽管，引导让步状语从句；until 直到……为止，引导时间状语从句。句意：如果你明年想赢得比赛，就努力训练。故选 A。
8•. C
【解析】
句意：如果明天是晴天，我们将在河边野餐。本句是含有由 if 引导的条件状语从句的主从复合句，遵循“主将从现”的规则，因此从句需用一般现在时态表达。
9•. A
【解析】
句意：如果今年夏天你休假，我也将会休假。由句意和句子结构可知，本句是含有由 if 引导的条件状语从句的主从复合句，遵循“主将从现”的规则。故选 A。
10•. C
【解析】
can 能，表能力；needn't 不必，表建议；mustn't 一定不要，表禁止；might 或许，表推测。句意：如果交通信号灯是红色的，你一定不要过马路。这非常危险。
11•. F
【解析】
由问句“你正在干什么，Bb？”及空后“我正在为此做准备”可知 F 项“我今晚要去参加年终聚会”符合语境。故选 F。
12•. E
【解析】
根据下文“不准带食物到聚会上”知，当 Bb 想带零食去参加聚会时，Alice 告诉 Bb“你不能那么做”。故选 E。
13•. D
【解析】
上文提到 Bb 想带零食去参加聚会，而 Alice 让他不要带，此时当 Bb 说“如果我那样做了，将会发生什么？”，Alice 应该会说“如果你带零食，老师会不高兴”。故选 D。
14•. C
【解析】
根据上句“为什么我不能穿牛仔裤？”可知，这里谈论的是参加聚会的服装规则。故选 C。
15•. B
【解析】
上句“Can I take my mbile phne?”为一般疑问句，应用 yes 或 n 回答。从下文“啊，真无聊”可知，这里用否定回答。故选 B。
16•. want, g
17•. desn't start, wait
18•. desn't rain, will g
19•. Hurry, will be
20•. has, send
A.discvers
B.discvered
C.is discvered
D.was discvered
A.Hw lng
B.Hw much
C.Hw big
D.Hw heavy
A.thugh
B.unless
C.if
D.until
A.has
B.have
C.had
D.will have
A.g
B.went
C.have gne
D.will g
A.because
B.when
C.if
D.unless
A.if
B.s
C.thugh
D.until
A.will be
B.be
C.is
D.was
A.will
B.d
C.am
D.have
A.can
B.needn't
C.mustn't
D.might
11. A.Yes, yu can.
B.N, yu can't, either.
C.If yu dress yurself like that, yu'll have t leave.
D.If yu take snacks, the teacher wn't be happy.
E.Yu can't d that!
F.I'm ging t the end-f-year party tnight.
12. A.Yes, yu can.
B.N, yu can't, either.
C.If yu dress yurself like that, yu'll have t leave.
D.If yu take snacks, the teacher wn't be happy.
E.Yu can't d that!
F.I'm ging t the end-f-year party tnight.
13. A.Yes, yu can.
B.N, yu can't, either.
C.If yu dress yurself like that, yu'll have t leave.
D.If yu take snacks, the teacher wn't be happy.
E.Yu can't d that!
F.I'm ging t the end-f-year party tnight.
14. A.Yes, yu can.
B.N, yu can't, either.
C.If yu dress yurself like that, yu'll have t leave.
D.If yu take snacks, the teacher wn't be happy.
E.Yu can't d that!
F.I'm ging t the end-f-year party tnight.
15. A.Yes, yu can.
B.N, yu can't, either.
C.If yu dress yurself like that, yu'll have t leave.
D.If yu take snacks, the teacher wn't be happy.
E.Yu can't d that!
F.I'm ging t the end-f-year party tnight.