九年级英语下配套练习册答案

山东省

人教版九年级下册英语（新目标）配套练习册答案Unit 9 when was it invented ?

Section A

一：1. invented 2.invention 3.adjustable 4.heat 5.slippers 二：1~5 CBCCC

三： 1. What, used for 2. Who , invented 3. is , cleaned

4.must be repaired

5. to see

Section B

一： 1.notice 2. salty 3.produced 4. remain 5.pleasant 二: 2.too thin 2.by accident 3.According to, was discovered

4. by mistake

5.in this way ,in the end

6.fell into

三: 1~5:AADCD 6~10:BDBDC 11~12 :AC

四: for, on, Who , think, are, inwentions, is , most Self Check and Reading

一: 1.century 2.knock 3.below 4.wooden 5.towards 6.

developing 7.divided 8.active 9.aim 10.create 二: 1.helpful 2.invention 3.salt 4.the most popular

5.safety

6.wood

三: 1.It is believed https://www.360docs.net/doc/4110861516.html,d 3. to learn 4.was sent

5.was handed in

6.Was ,cleaned

7.found him

8.When was, invented

四: 1~5:BADBA 6~10:CADAB

五: 1~5:ABCAC

6.He grew vegetables in his garden and sold them.With

the money he set up a chemical lab.

he was awarded 1368 separate and distinct patents

during his lifetime.

8.February 11th,1847 9.October 18th,1931

10.America 11.Built a lab 12. 1368

13. His first patented invention was an electrical vote

recorder in 1868.

14. 1876~1877,invented the phonograph.

15.1900~1910, invented and perfected and steel alkaline

storage battery.

Unit10 By the time I got outside ,the bus

had already left

Section A

一： 1.lock 2.verslept 3.rush 4.relative 5.broke

二： 1. had left 2.had left 3.to come 4.had cooked

5.doesn’t rain

6.had had

7. finishing

8.had

learnt

三: 1~5:CBBAB

四: 1.walking, on time 2.been late for ,came ,close 3.go