In the boxes below are some of the words andexpressions you have learned in this unit. Do you understand their meanings? Doyou know how to use them in the proper context? Now check for yourself by doingthe blank-filling exercise. Change the form where necessary. ( 正确形式,不能仅填字母,否则判错) A neglect B come across C reward D come up with E prospect F pack up G many a H trace I plunge ... in / into J stay the course K put ... to the test L flood in 1.The garden has fallen into a state of _________________ since its owner died two years ago. 2.The origin of Chinese writing can be _________________ back to ancient China although we are not certain of the date of its invention. 3. More and more people in big companies are enrolling in English courses to improve their promotion( 晋升 ) _________________. 4. Susan started singing to her baby and was _________________ with a smile. 5. Since the summer vacation has started, let’s_____________________ and spend a week in the country with my grandparents. 6. The boy is so interested in the popular novel entitled Harry Porter and the Deathly Hallows( 圣徒 ) that he has read it for _____________________ time. 7. I admire Steve very much, for in his pursuit of a successful life, he always_____________________ and never gives up in spite of the many difficulties and risks he has encountered. 8. The couple’s love was _____________________when the husband was crippled in a car accident. 9. I mailed out 250 letters to complete strangers for help and within 6 weeks the stream of money came _____________________ from all over the country. 10. When searching for some news online( 在线的 ) last night, I _____________________ an interesting website( 网址 ) devoted to computer games. 11. He is so clever that he can always_____________________ solutions at the last moment. 12. At the sight of the big fish, the fisherman _____________________ his hands_____________________the water and caught it with graceful ease.