1. 值...钱_________________________________

2. 值得......______________________(worth)

3. 某事(很)值得做___________________(worth)

4. 值得......_____________________(worthy)

5. 某事值得做__________________ _____/__________ ________(worthy)

【答案】1. be worth some money 2. be worth doing 3. sth is worth doing 4. be worthy of sth 5. sth is worthy of being done

[即学即练]

(1) The necklace Mathilde borrowed from her friend was __________ 350 francs at most.

(2) The trip was expensive but it was ____________ every penny.

(3) It is ____________ to visit the museum.

(4)With so many valuable exhibits on show, the museum is certainly________________________ (很值得参观)(worth).

(5) Generally speaking, the film is _________________________(值得一看) (worthy).

【答案】1. worth 2. worth 3. worthwhile 4. worth visiting 5. worthy to be seen

3. observe vt.观察；观测；遵守；庆祝 n. 观察；观察力

[研读思考] 请写出句中observe 的含义

(1) I observed a stranger go/ going into the office.

(2) The woman was observed to follow him closely.

(3) When I was a child, I would observe the night sky.

(4) The policeman observed that the driver did not observe the traffic rules. _________________

(5) They will observe their wedding anniversary. ______________________

【答案】1. 观察到，看到 2. 看到 3. 观察 4. 遵守 5. 庆祝

[结构归纳]

1. 观察某物/某人 2. 观察某人做某事（全过程）

3. 观察某人正在做某事 4. 发现/观察到...

5. 遵守交通规则________________________ 6. 庆祝结婚周年纪念日/圣诞节___________

【答案】1. observe sb/sth 2. observe sb do sth 3. observe sb doing sth 4. observe that 5. observe traffic rules 6. observe wedding annicersary /Christmas

[即学即练]