Unit 7 What’s the highest mountain in the world
square
例句：The square of 5 is 25.（5的平方是25。）
例句：There is a big square in the center of the city.（城市中心有一个大广场。）
meter
例句：The room is 5 meters long.（这个房间5米长。）
deep
例句：The river is very deep here.（这条河在这里很深。）
desert
例句：Camel is a common animal in the desert.（骆驼是沙漠中常见的动物。）
population
例句：The population of this city is over one million.（这个城市的人口超过一百万。）
Asia
例句：China is the largest country in Asia.（中国是亚洲最大的国家。）
feel free
例句：Feel free to ask me any questions.（有任何问题随便问我。）
tour
例句：We are planning a tour to Beijing.（我们正在计划一次去北京的旅行。）
tourist
例句：There are many tourists visiting the Great Wall every year.（每年都有很多游客游览长城。）
wall
例句：The wall is made of bricks.（这堵墙是用砖建造的。）
amazing
例句：The view from the top of the mountain is amazing.（山顶的景色令人惊叹。）
ancient
例句：There are many ancient buildings in this city.（这座城市有很多古老的建筑。）
protect
例句：We should protect the environment.（我们应该保护环境。）
wide
例句：The road is 10 meters wide.（这条路10米宽。）
as far as I know
例句：As far as I know, he is a very hard - working student.（就我所知，他是一个非常勤奋的学生。）
man - made
例句：The man - made lake is very beautiful.（这个人造湖非常漂亮。）
achievement
例句：His achievement in science is remarkable.（他在科学方面的成就很显著。）
southwestern
例句：The southwestern part of the country is mountainous.（这个国家的西南部多山。）
thick
例句：The snow on the ground is very thick.（地上的雪很厚。）
include
例句：The price includes tax.（这个价格包括税。）
freezing
例句：It's freezing outside. You'd better put on more clothes.（外面极冷。你最好多穿点衣服。）
condition
例句：The car is in good condition.（这辆车状况良好。）
take in
例句：We take in oxygen when we breathe.（我们呼吸时吸入氧气。）
succeed
例句：He succeeded in passing the exam.（他成功通过了考试。）
challenge
例句：We should face the challenges bravely.（我们应该勇敢地面对挑战。）
in the face of
例句：In the face of difficulties, we should not give up.（面对困难，我们不应该放弃。）
achieve
例句：We can achieve our goals through hard work.（我们可以通过努力工作实现我们的目标。）
force
例句：The force of the wind is very strong.（风的力量很强。）
nature
例句：We should respect nature.（我们应该尊重自然。）
even though
例句：Even though it was raining, he still went to school on time.（即使在下雨，他仍然按时去上学。）
ocean
例句：The ocean is home to many kinds of marine life.（海洋是许多种类海洋生物的家园。）
the Pacific Ocean
例句：The Pacific Ocean is the largest ocean in the world.（太平洋是世界上最大的海洋。）
cm
例句：The length of this pencil is about 15 cm.（这支铅笔的长度大约是15厘米。）
weigh
例句：How much do you weigh （你体重多少？）
birth
例句：The birth of a baby brings joy to the family.（婴儿的诞生给家庭带来欢乐。）
at birth
例句：At birth, the baby was very small.（出生时，这个婴儿很小。）
up to
例句：The temperature can go up to 30 degrees in summer.（夏天温度能达到30度。）
adult
例句：An adult should be responsible for his actions.（成年人应该对自己的行为负责。）
bamboo
例句：Pandas mainly eat bamboo.（熊猫主要吃竹子。）
endangered
例句：Many species are endangered due to environmental pollution.（由于环境污染，许多物种濒临灭绝。）
research
例句：They are doing research on cancer.（他们正在进行癌症研究。）
keeper
例句：The keeper takes good care of the animals in the zoo.（饲养员悉心照料动物园里的动物。）
awake
例句：He was still awake at 11 o'clock last night.（他昨晚11点还醒着。）
excitement
例句：The children jumped up and down in excitement.（孩子们兴奋地跳上跳下。）
walk into
例句：He walked into the wall because he was looking at his phone.（他因为看手机而撞到了墙上。）
fall over
例句：She fell over on the ice.（她在冰上摔倒了。）
or so
例句：There are 20 students or so in the classroom.（教室里大约有20个学生。）
illness
例句：He was absent from school because of illness.（他因病没去上学。）
wild
例句：There are many wild animals in the forest.（森林里有很多野生动物。）
government
例句：The government is taking measures to protect the environment.（政府正在采取措施保护环境。）
whale
例句：Whales are the largest animals on the earth.（鲸是地球上最大的动物。）
oil
例句：We use oil to make many products.（我们用石油制造很多产品。）
protection
例句：The law provides protection for the rights of citizens.（法律为公民的权利提供保护。）
huge
例句：There is a huge tree in front of the house.（房子前面有一棵大树。）
Qomolangma
例句：Qomolangma is the highest mountain in the world.（珠穆朗玛峰是世界上最高的山峰。）
the Nile
例句：The Nile is one of the longest rivers in the world.（尼罗河是世界上最长的河流之一。）
the Caspian Sea
例句：The Caspian Sea is the largest inland body of water in the world.（里海是世界上最大的内陆水体。）
the Sahara
例句：The Sahara is the largest hot desert in the world.（撒哈拉沙漠是世界上最大的热带沙漠。）
the Yangtze River
例句：The Yangtze River is very important for China's economy.（长江对中国的经济非常重要。）
the Yellow River
例句：The Yellow River is known as the mother river of the Chinese nation.（黄河被称为中华民族的母亲河。）
the Ming Dynasty
例句：Many great works of art were created in the Ming Dynasty.（许多伟大的艺术作品是在明朝创作的。）
the Ming Great Wall
例句：The Ming Great Wall is a famous historical site.（明长城是著名的历史遗迹。）
the Himalayas
例句：The Himalayas are covered with snow all year round.（喜马拉雅山脉终年积雪覆盖。）
the Amazon River
例句：The Amazon River is rich in biodiversity.（亚马逊河生物多样性丰富。）
Chengdu Research Base
例句：The Chengdu Research Base is well - known for panda research.（成都研究基地以熊猫研究而闻名。）
