请问It is 20 tons heavy里heavy是什么句子成分啊?

请问It is 20 tons heavy里heavy是什么句子成分啊? It weights six tons.= __ __ is six tons.= It's six tons ____. 请问 tons of it 怎么翻译? 关于weigh的问题,It weighs six tons.= ___ ___ is six tons.= It's six tons __. ...tons of amber were used......thousand tons of amber were used to make it.请问为什么这里要用were,而不用was呢? it weighs 100000 tons 对100000 tons划线提问it weighs 100000 tons 对100000 tons划线提问 a sperm whale is 35 tons.对35 tons提问 I weigh over 100 tons=I weigh over 100 tons () ()=() ()is over 100 tons weigh与weight 请大家看几个句子：1.It is 79 meters high and weighs 13.5 tons.(英语书）2.It is 46 meters high and weighs 229 tons.(英语书）3.The car weights about two tons.(英语练习册）4.The fish weights over 5 kilos.（英语 请问where is it 请问,is it right? 英语翻译Every object has weight.But the center of its weight is not always in the middle of the object.If the top of an object is heavier than its bottom,it will fall over easily.We say that its center of gravity is high.But if the bottom is heav 求英语达人看看以下3篇小作文有无错误.我英语不大好,因为英语作业（小学六年级）不会写.所以..题目：Sperm Whale内容：A sperm whale is 15 meters.It's 35 tons.It has 50 teeth.Each up to 20 cm long.Its tail is 8 英译汉 不要翻译软件翻译过来的.16.I’m drawing a blank ! This just seems cruel. 17.As a doctor , he is especially conscious of the many dangers surrounding us. 18.Look—it’s too long ,even on me . And this material is so heav three tons of coal后面用is 还是are The big elephant's_____(weigh)is about two tons.3. If you go to Egypt,you’ll see a lot of pyramids.The biggest of all is the Great Pyramid.It is about 137 meters high and made of 2,300,000 big stones.Each stone weighs about two and a half tons（吨）.The biggest ones even weigh fifteen tons.It to 请问nothing is what it