unit4课文知识点

自从那。。。 现完 from then on
have been
• Since then, people _______ (be) able to speak to each other over long distances. • speak to sb.= • talk to/with sb. • chat with sb. • over • prep.越过
• They allow people _______(keep) in touch with to keep each other anytime, anywhere. • 词性 • adv.任何时候
practical adj.
• Thomas Edison developed the first __________(practice) light bulb in 1879.
D its它的
travelling动名词做主语
• After_____invention ,______became faster and more comfortable. • A it, travel • B it, travelling • C its, travel • D its, travelling
在某方面帮助 help sb with sth
• She always helps me _____my Maths. • A in • B to • C with • D on
B say+内容 speak+语言
• • • • • • Can you ____it in English ？ Yes ,I can _____English. A speak, speak B say, say C speak, say D say ,speak
a few+名词复数 years
years • A few thousand _______(year) ago, people started to use wheels on _______(carriage). carriages • started为什么用过去式？ • ago
on百度文库
在19世纪早期
Unit4
Great inventions
p49Front page • What (do you think) is the most important invention in the world? • do you think 成分 • 插入语 • 为什么最高级？ • in the world •
在。。。开端、开始
• At the start of the 20th century, cars became popular. • 在。。。结束的时候 • at the end of
Without prep.没有
_________the wheel, we would not have these inventions. • with /without用法 • 没有空气和水，我们不能活。 • We can’t live without water or air.
the most important ？
• The following are three of___________ (important) inventions in history. • 在历史上 • 在太空 2种 • in space • in the universe
probably/maybe adv.可能 • The wheel is perhaps _________(great) invention, • the greatest ?
Which of the following is wrong?
• A She always helps me study English. • B She always helps me to study English. • C She always helps me with English. • D She always helps me studying English. D
p60Writing B
• • • • • • • • • 以。。速度 at a speed of 在很短时间内 in a short time 在陆地 on land 在空中 in the air
P61 • 立刻、马上 • right now • 始终、一直 • all the time • 用。。。再次充满 • refill …with…
have to do 不得不 to use
invention （invent） • Before the _________ of the light bulb, People had ______(use) oil lamps, gas lamps or candles ______(see) at night. • to see • 动词不定式接名词后 表目的 •
P61
• • • • • • • • 一团糟 make a mess 很成功 be a great success= very successful 遍及全世界 all over the world throughout
• • • • •
在很多说英语国家 in many English-speaking countries 指代 refer to = represent
• In the early 19th century, the first trains began to carry passengers. • 世纪的表达 • 在18世纪40年代 • in the 1740s • 世纪的 早、中、晚 • early /middle/late
at the beginning of
数以百万计的 约数 • Today millions of people across _______(through/across/over) the world own mobile phones. • have • across 平面
允许某人做。。allow sb to do= let sb do
询问意见 • What do you think of my dress?= • How do you like my dress? • 请注意回答 • Pretty/Nice.
P51课文 为什么加the?
• The wheel • The telephone • The light bulb • 独一无二，发明物
inventions
• Great________( invent) change the world. better • They help people live a ______(good) life. • 帮助某人做。。2种 • help sb do /to do • help sb with sth
• 在早上/下午/晚上 • in the morning/afternoon/evening • 在中午 at noon • 在夜晚 • at night • 在白天 • in the daytime
living
• Can you imagine ______(live) without them? • 想象做。。 • imagine doing sth
Prep.有了 With • ______light bulbs, people can do many as ______(many/much) things in the evenings as they can (do) in the daytime. • 为什么evening +s? • 表示每一个
Which of the following is wrong ?
• We have not _______each other for a long time since then. • A got in touch with • B been in touch with A • C kept in touch with
C。Prep.用
• What can we do _____the Internet? • Surfing on line. • A in • B by • C with • D without
C prep.用 • You can cut the pumpkin ____a knife. • A in • B by • C with • D without
The telephone • 为什么+the？ • 特指、独一无二 、发明物+the • Alexander Graham Bell invented one of the first practical adj. __________(practice) telephones in 1876.