文档介绍：人教版九年级下册英语(新目标)配套练****册答案
Unit 9 when was it invented ?
Section A
一: 1. invented 二: 1~5
三: 1. What, used for 2. Who , invented 3. is , cleaned be repaired 5. to see
Section B
一: 2. salty 4. remain
二: thin accident to, was discovered 4. by mistake this way ,in the end 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: 6. developing
二: most popular
三: is believed 3. to learn sent handed in ,cleaned him was, invented
四: 1~5:BADBA 6~10:CADAB
五: 1~5:ABCAC
grew vegetables in his garden and sold the money he set up a chemical lab.
he was awarded 1368 separate and distinct patents during his lifetime.
11th,1847 18th ,1931 a lab 12. 1368
13. His first patented invention was an electrical vote recorder in 1868.
14. 1876~1877,invented the phonograph.
~1910, invented and perfected and steel alkaline storage battery.
Unit10 By the time I got outside ,the bus had already left
Section A
一:
二: 1. had left left cooked ’t rain had 7. finishing learnt
三: 1~5:CBBAB
四: , on time late for ,came ,close off ,overslept down off
Section B
一:
二: 1~5CABBD 6~10BAACD
三: off married ,to watch up much ,as up to of ,that
四: 1~5:BEDCA
Self Check and Reading
一: ,hadn’t seen go learnt/learned be showed /shown
二: ,to 2.