11．与　　 有联系be linked to　　　　　　　 　12参与做某事 have a hand in…

9. 平均重达4吨weigh 4 tons on average　 10某人如何完成某事是个谜 it is a mystery that…　　　　

7. 由于这些原因 for these reasons　　 　8来自一个不太远的地方 from a place not very far

5. 备用的材料spare material　　　　　 　6. 许多，种类繁多 a variety of　　　　　　　　　　

13. What he said was r　　　　　　 　, so they found no excuse.

Key; merchant/condition/punishment/pay/ tearing /mercy /consequence /balance /Therefore /judge /Sergeons / worthy /reasonable

Unit 20

Phrases:

1追溯到.　 Date bach to　　　　　　　　　　　　　　　　 2侧.卧 lie on one’s side

3给某人一个想法give sb an idea of　　　　 　4一件衣饰. An article of clothing

12. The exhibition is well w　　　　　 　of being visited.

11. S　　　　 　　　are those who operate on patients.

10. The j　　 　　　declared that the court allowed it according to the agreement.

9. Antonio’s ships had been lost at sea. T　　　　　 　,he had no choice but to give Shylock one pound of his flesh.

8. A b　　　 　　　is used to weigh things you want to sell.