人教新目标八年级下册七单元SectionB单词详解

1、Unit 7 Whats the highest mountain in the world? Section B 单词详解1. cm (centimeter)厘米Its 20 cm thick. 它有20厘米厚。2. weigh v. 称的重量 weight n. 重量 ,不可数用作连系动词，意为：重量是,对重量提问，常用How much do /does didweight?或How heavy?He weights sixty kilos. 他体重60千克。How much does it weigh？它的重量是多少？put on weigh 增重Whats the weight of

2、the ship？这只羊的重量是多少？She weighs herself every day and wants to lose weight.她每天都给自己称重，想减肥。The elephant weights many times more than this panda. 这头大象的重量是这只熊猫的很多倍。time “是.的几倍”主语 + 数词 + times + as +形容词+ as +被比较的内容Our new school is four times as big as the old one.我们的新学校是旧学校的四倍。 “次数” 一次 once 两次 twice 三次及三次

3、以上 ： 基数词 + times three times 三次 three or four times 三到四次many times 很多倍 last time (在)上次时 every time 每次/每回 each time 每当时 the first time 第一次时 next time (当)下次时 3.birth n. 出生；出身；at birth 出生时 （用作时间状语）,相当于when was /were born，其中birth用做不可数名词,意为：出生，诞生At birth， the baby was about three kilos. 出生时，这个婴儿大约三千克重。Do

4、 you know the date of his birth？你知道她的生日吗？4.up to 高达 up to +数量词 达到 （某数量、程度等）；至多I can take up to four people in my car.我的小汽车里可以容纳4个人。 up to now 直到 （现在）Up to now , Tony has been very quiet. be up to sb. “由某人决定” Shall we go out or stay in ? Its up to you.A panda can live up to 20 to 30 years. 一只熊猫活20年到3

5、0 年。5.adult adj. 成年的；成人的 n.成人；成年动物An adult panda weighs many times more than a baby panda .一只成年大熊猫的重量是一只大熊猫宝宝的许多倍。human n 人；人类 No human could live like this .没有人能这样生活。6.bamboo n. 竹子 ,不可数名词 bamboos表示种类。 The house is made of bamboo. There are bamboos growing in the mountain. 山里生长着各种各样的竹子7.endangered a

6、dj. “濒危的”，表示濒临灭绝 Why are pandas endangered? 为什么大熊猫濒临灭绝？dangerous adj. “危险的”，表示给他人或他物带来危险。Snakes are dangerous animals. 蛇是危险的动物。danger n. “危险”，in danger, 处于危险中Pandas used to be in danger.熊猫曾经处于危险境地。8.research ，通常用作不可数名词，也可用作可数名词,意为“研究；调查”，常与动词do ，make， carry out等连用构成动词短语，表示“做或进行研究工作”，其后可接介词on， into等引

7、出研究的内容。The research shows that napping for about an hour is the best.研究表明小数一个小时是最好的。Im doing some research on Chinese history. 我正在研究中国历史。research，还可以用作不及物动词，意为“研究；调查”后常接介词into，表示“对进行研究”。They are researching into the causes of cancer.他们正在研究癌症的起因。9.keeper n. 可数，监护人；饲养员；看守人；管理人Her father was a keeper o

8、f the lighthouse. 她爸爸是灯塔守护者。10. awake adj. 醒来 （反义词）asleep 睡着的 She was awake all night.V. 唤醒；使醒来 = wake up The noise awake me. He fell asleep early last night, and he was awake early this morning.11. excitement n 激动；兴奋 用做不可数名词 to ones excitement 使某人兴奋的是 with excitement激动地；兴奋地相当于excitedly表示某人做某事时的状态Wh

9、en he succeeded in working out the problem, he jumped with excitement.当他解出那道难题时，他兴奋地跳了起来。excite v (使)兴奋 exciting adj. excited adj.He told us an exciting story yesterday. Are you excited about going to Beijing? be excited about 对感到激动 Everyone was excited when they heard the exciting news.12.walk into

10、 走路时意外撞着Be careful when you go downstairs， or you may walk into other people.下楼时要注意，否则你可能会撞着别人。 When the babies see the keepers, they run over with excitement and some of them even walk into their friends and fall down! 当熊猫幼崽们看到饲养员时便激动地跑了过来，有些甚至撞倒它们的伙伴，绊倒在地 run over 撞倒 run ran run running runner 赛跑的

11、人run after 追逐,追求 run away from 从跑掉;逃避 run out (某物)被用完 run out of 用完(某物) run into 无意间碰到,和相撞 13.fall over 落在.之上, 脸朝下跌倒；向前摔倒、跌倒”He fell over well while coming down the stairs yesterday.昨天他下楼时摔倒了。Many trees fell over after the rainstorm.暴风雨之后，许多树都倒了。fall over sth. 表示被某物绊倒Tom fell over a stone and hurt h

12、is knee.汤姆被一块石头绊倒了，伤到了膝盖fall over强调“向前摔倒，跌倒绊倒”，fall down强调的是“滑倒、倒下”，后接宾语时应加上介词fromfall off强调跌落，从掉了下来，后面可以直接跟宾语fall “落下，跌落，降落”，指在重力的作用下落下，或失去平衡而跌落The leaves fall in the autumn. The book fell down from the table to the floor. What happened to Mare? He fell off the bike on a snowy morning. 14.or so大约,

13、位于数词，或者表示时间的名词之后，相当于about或around，但about/around表示大约时，常放在在数词或者表示时间的名词之前。It took them three years or so to build this road=It took them about around three years to build this road.这条路花费了大约三年时间。15.illness 疾病；病ill /sick 共同点：生病的；有病的 不同点：ill adj.生病的；有病的作表语，不能作定语 be ill in hospital sick 作表语/作定语，病人a sick man

14、 或the sick,She is ill / sick in bed. 她卧病在床。She is looking after her sick father .她在照顾她生病的父亲。sick 恶心的；厌倦的 The smell makes me sick.这气味使我感到恶心。 He cant even move because of his illness.The baby often die from illness and do not live very long. 熊猫幼崽常死于疾病，并且活不久。die v. （延续性动词） be dead 死，死亡 death n. 死，死亡 de

15、ad adj. 死的 dying adj. 将死的16.wild adj. 野生的；野蛮的；狂热的；荒凉的They lit a fire to keepwildanimals off .他们燃起篝火防止野兽接近。Awildlook came into his eyes . 他的眼睛里露出了狂暴的神色17.government gvnmntn.政府；政体；统治David s father is agovernmentofficial .大卫的父亲是位政府官员。They had to learn too about thegovernment.他们还得熟知政府的内情。18.whale n.鲸 复数：whales Which is bigger , a blue whale or a dinosaur?哪一个更大，一只蓝鲸还是一只恐龙?18.oil n. 油；石油；不可数 We need more tection n. 保护；防卫；护照What I did was s