Unit 15 We’re trying to save the manatees
她用手掂量兩個(gè)蘋果，把大一點(diǎn)的給了我。
（2）young people sometimes do things before weighing the consequences.
青年人辦事有時(shí)不考慮后果。
（3）the branches of the apple tree were weighed down by the fruit.
蘋果樹的枝子被果實(shí)壓彎了。
（4）the airplane weighs five tons unloaded.
這架飛機(jī)不載貨時(shí)重五噸。
（5）your eloquence will not weigh with us.
你的雄辯不會(huì)對我們起什么作用。
（6）her illness weighed on her husband’s mind.
她的病使他丈夫心情沉重。
（7）vegetables are sold by weight.
蔬菜是按重量賣的。
（8）her success in the examination was a great weight off her father’s mind.
她考試及格，使父親心頭如釋重負(fù)。
（9）it has some weight with me.
此事對我有一點(diǎn)影響。
5. pull[pul]vt. &vi. 拉, 牽, 拔, 吸引。可作名詞用，它的反義詞是push。
【例】（1）she pulled the door open.
她拉開了門。
（2）i pulled at the handle but the door didn’t open.
我拉了一下把手，但沒有把門拉開。
（3）they vie with each other in pulling more votes for themselves.
他們相互爭著為自己多拉選票。
（4）he took a pull at the bottle.
他從瓶里喝了一大口酒。
（5）it was a long pull along the great wall to the beacon tower on the peak.
還要沿著長城爬很長一段路，才能爬到頂峰的烽火臺(tái)。
（6）a good education gives a man a great pull.
良好的教育能給人帶來莫大的好處。
（7）why do you push against me?
你為什么推我？
（8）the strikers pushed for higher wages.
罷工者爭取提高工資。
6. discard [dis′ka: d] vt. 丟棄，放棄。
【例】 （1）he discarded the old dictionary for a new one.
他丟棄了舊字典，換上新的。
（2）such die-hards will be discard by history.
這種頑固分子會(huì)被歷史所拋棄。
（3）we should discard the dross and select the essential.
我們應(yīng)該去粗取精。
7. can[k n]n. 罐頭。作動(dòng)詞用表示“裝罐頭”，此外它可作情態(tài)動(dòng)詞用，后跟動(dòng)詞原形。
【例】（1）he bought two cans for his daughter.
他給女兒買了二聽罐頭。
（2）turtle meat is canned and sold as a delicacy.
甲魚肉被制成罐頭作為美食出售。
（3）he can sing and play the piano at the same time.
他能邊彈鋼琴邊唱歌。
（4）what he said can be true.
他說的可能是真的。
（5）you can’t say such things to a friend.
你不可以對朋友說這種話。
8. environment [in′vai r nm nt]n. 環(huán)境
【例】 (1) they live in a quiet environment.
他們住在安靜的環(huán)境里。
(2)we must protect our environment.
我們必須保護(hù)環(huán)境。
(3)this is a true story of man’s struggle with his environment.
這是個(gè)人類與環(huán)境作斗爭的真實(shí)的故事。
二、交際用語
1. 形容事物的大小、長寬等
how big are manatees?
they’re about 10 feet long and they weigh about 1, 000 pounds.