新譯林版九年級(jí)下冊(cè)英語 Unit 4 Reading II課件

1、Unit 4 Life on MarsReading 新課講解1. At present, our spacecraft are too slow to carry large numbers of passengers to Mars. 目前，我們的宇宙飛船太慢了，無法運(yùn)送大批的乘客去火星。Language pointsLarge numbers of 表示“大量的”= a large number of Large numbers of people go travelling during the National Day holiday. 新課講解2. With the develop

2、ment of technology, by the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light! 隨著技術(shù)的發(fā)展，到2100年，乘坐以光速飛行的宇宙飛船，行程或許只要大約20分鐘！I was second in theracewith atimeof 14.2seconds. 介詞with短語，在句中常用作狀語，表示原因、條件、時(shí)間、伴隨、方式等。我以14.2秒的成績(jī)?cè)诒荣愔形涣械诙?。新課講解By thetimeI got to

3、the station the train had already gone. by 表示“到%為止，截止 ”等我到達(dá)火車站時(shí)，火車已經(jīng)開走了。 at a/the speed of 表示“以的速度”The car is moving at a speed of 100 kilometres per hour.小汽車正以每小時(shí)100千米的速度行駛。新課講解3. The gravity on Mars is only about three-eighths of that on the Earth.火星上的重力大約只有地球上的八分之三。The air on Mars is much thinner

4、 than that on the Earth.在做比較時(shí)，我們常用that/those指代句中類似或相同的那一部分。此句中that指代前面的gravity.火星上的空氣要比地球上的稀薄的多。新課講解Three-eighths 八分之三分?jǐn)?shù)在英語中通常是借助于基數(shù)詞和序數(shù)詞來共同表達(dá)的。其中基數(shù)詞表示分子，序數(shù)詞表示分母。如：one-tenth 十分之一a third 三分之一注意：分子除用one外，也可用a；新課講解two thirds 三分之二four fifths 五分之四但是，1/2不能說a (one) second, 而要說 a (one) half。1/4和3/4可以說 a (on

5、e) fourth 和 three fourths, 但常用a quarter 和 three quarters表示。如果分子大于1， 分母要用復(fù)數(shù)形式。如：當(dāng)堂小練 選擇題。About _ of the students are from foreign countries. A. three four B. three fourthC. third fourth D. three fourths翻譯句子。我們班五分之三是女生。_ the students in my class _ girls.practice Three-fifths ofare新課講解4. Compared with

6、life on the Earth, life on Mars would be better in some ways.與地球上的生活相比，火星上的生活在有些方面要好些。Childrenseemtolearnmoreinterestingthings comparedto/with when we were atschool. compared with 表示“與相比”此句中的 “compared with the life on the Earth” 為 v-ed短語作狀語。與我們上學(xué)時(shí)相比，孩子現(xiàn)在學(xué)到的有趣東西似乎更多一些。 新課講解拓展：compare . to 意為“把比作”。Sh

7、akespeare compared the world to a stage.莎士比亞把人世比作舞臺(tái)。 用compare with 和 compare to 的正確形式填空。1.He cannot _ Shakespeare as a writer of tragedies.2. You cannot _ this war _ the Vietnam war (越南戰(zhàn)爭(zhēng)).practice compare withcompare to新課講解5. Life on Mars would be interesting as well as challenging.火星上的生活，不僅有挑戰(zhàn)性，還很

8、有趣。IwanttovisitAndrew as wellasMartin. as well as 意思為“不但而且”我想去拜訪安德魯，還有馬丁。 Sheshares(in)mytroublesaswellasmyjoys.她與我同甘共苦。 當(dāng)堂小練I. 用括號(hào)內(nèi)所給詞的適當(dāng)形式填空。 There is less air _ (pollute) in town that in the city.2. Look at the newest T-shirt. Its made of cotton. I think it will become _ (fashion) this summer.3.

9、Its _(high) possible that people can live on Mars in the future.4. Grandma is too old _ (settle) on another planet. 5. The helmet is made of metal. Its too heavy. When I wear it, I feel _ (comfort).pollution fashionablehighly to settleExercisesuncomfortable 當(dāng)堂小練6. My father cooks very well. The food

10、 he cooks is as _ (taste) as that in the restaurant.7. Here are many kinds of moon cakes for you _ (choose) from.tastyto choose 8. _ (compare) with what he had already, the new stamps were not very interesting.9. _ (hope), doctors have found a new way to operate on the patients - flying hospital.10.

11、 We should keep water from _ (be) polluted.Compared Hopefully being當(dāng)堂小練II. 翻譯下列句子。1. 火星上的重力大約只有地球上的八分之三。The gravity on Mars is only about three-eighths of that on the Earth.2. 火星上的生活，不僅有挑戰(zhàn)性，還很有趣。Life on Mars would be interesting as well as challenging.當(dāng)堂小練III. 閱讀小短文，回答下列問題。True or false.1. There was liquid water on Mars long ago.2. The writer is sure that