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