1、A.To predict a heavy rain.B.To check the weather forecast.C.To protect people from the rain.D.To remind people to take an umbrella.2.What do we know from Belyaevs words in Paragraph 2?A.His creation was inspired by an experience.B.It rains a lot in the city of Saint Petersburg.C.Street lamps are pro
2、tected by canopies.D.He enjoyed taking walks in the rain.3.Which of the following shows how the Lampbrella works?A.motorcanopysensorsB.sensorsmotorcanopyC.motorsensorscanopyD.canopymotorssensors4.What does Paragraph 5 mainly tell us about the Lampbrella?A.Its moving speed.B.Its appearance.C.Its inst
3、allation.D.Its safety.5.What can be inferred from the last paragraph?A.The designer will open a company to promote his product.B.The Lampbrella could be put into immediate production.C.The designer is confident that his creation is practical.D.The Lampbrella would be put on show in Moscow.2 Scientis
4、ts around the world have been studying the warming of waters in the Pacific Ocean known as El Nino （厄尔尼诺）. The appearance of El Nino is known to affect the weather around the world. Scientists still do not completely understand it. Yet they now find they can use it to tell about the future in differ
5、ent areas of the world. One example is the work of two scientists at Columbia University in New York, Mark Cane and Gordon Eshel. A scientist of Zimbabwe（津巴布韦）, Roger Buckland worked with them. They have found that when El Nino appears, Zimbabwe has little or no rain. This means corn crops in Zimbab
6、we are poor. The last El Nino was in 1991 to 1993. That was when southeastern Africa suffered a serious lack of rain. The scientists wrote about their recent work in the publication（出版物）Nature. Their computer program can tell when an El Nino will develop up to a year before it does. They suggest tha
7、t this could provide an effective early warning system for southern Africa, and could prevent many people from starving.1.El Nino is known as _.A.the changing of the weather in southern AfricaB.the warming of waters in the Pacific OceanC.the weather which brings drought（旱灾）to AfricaD.the weather phe
8、nomenon（现象）that brings heavy rains to Africa2.Scientists study El Nino in order that _.A.they can provide a kind of early warning to the place that will suffer from droughtB.they can tell why Zimbabwe has little or no rainC.they can do some research work in this field.D.they can put all this informa
9、tion into their computers.3.Which of the following is TRUE according to the passage?A.Scientists come to understand how El Nino appears.B.Three scientists from the USA work on this subject.C.Southern Africa suffered a serious drought and many people died from hunger.D.El Nino has something to do wit
10、h Zimbabwes poor crops.4.Which of the following is NOT true according to the article?A.The computer is used in this research work.B.Scientists know when an El Nino appears by means of the computer program.C.The scientists published their results of the research work.D.Nature is the name of the artic
11、le written recently by the scientists.5.Whats the best title for this passage?A.Appearance of El Nino is Predictable（可预测的）B.Drought in ZimbabweC.Early Warning SystemD.Weather in Africa3. Organic（有机的）farming is a type of agriculture that benefits from the recycling and use of natural products.Use of
12、dried plants not only saves money,but also ensures the growth of crops.The technique is characterized by the use of green manure（肥料）,biological pest control methods and special farming techniques to keep soil productivity.Limiting the use of man-made chemicals or completely doing away with them redu
13、ces the risk of diseases. Today,organic farming is a major and preferred industry around the world. Organically grown food products have a huge market,with farmlands covering about 10% of the total world-farmland cover. The hard work of Sir Albert Howard,the Father of Organic Farming, has paid off.
14、Advantages of Organic Farming: （1）The economics of organic farming are characterized by increasing profits through reduced water use and reduced soil erosion（侵蚀）. （2）Organic farming produces the same crops as those produced through traditional farming methods,but uses half the energy,and holds 40% m
15、ore topsoil. （3）Farming the organic way enables farmers to get rid of weeds without the use of any chemicals. （4）The use of green pesticides（杀虫剂）is environmentally friendly and does no harm to humans health. Disadvantages of Organic Farming: （1）Organic methods of farming produce less,compared to tra
16、ditional farming techniques. （2）Organic agriculture does little to fight global climate change.Though organic farming practices are recognized as giving out less CO2,but not to a significant degree. However,though there are some disadvantages to organic farming,farms where organic methods for croppi
17、ng have been used have more advantages than traditional farms.Organic agriculture is surely better in the long term.1.The underlined sentence in Paragraph 1 shows that Sir Albert Howard_.A.worked hard for nothingB.succeeded in organic farmingC.spent all his time on organic farmingD.didnt expect orga
18、nic farming to be successful2.According to the passage,compared to traditional farming,organic farming_.a.is more environmentally friendlyb.produces a lot more foodc.uses less energyd.results in more weeds in the farmlande.is better for humans healthA.abcB.acdC.aceD.bce3.The authors attitude toward
19、organic farming is_.A.anxiousB.hopelessC.unclearD.optimistic4.The writer wrote this passage to tell us_.A.the development of agricultureB.what kind of food is being grown at presentC.why organic farming is so popular around the worldD.what organic farming is and its advantages and disadvantages4. Ge
20、tting stuck in a traffic jam is one of the most boring problems for people living in big cities.The fact that youre moving so slowly leads too stress,anger and the wish that your car could just fly over the traffic like an airplane. Soon,however, that wish could come true .On May 8, US car-renting c
21、ompany Uber showed off what it described as “the transportation mode of the future: on-demand air transport,”reported ABC News . According to Nikhill Goel, head of products for Uber Air, the companys air taxi service may launch test flights in the US cities of Dallas and Los Angeles , as well as Dub
22、ai in the United Arab Emirates, as early as 2020. If everything goes according to plan, passengers will be able to fly to work by 2023 . When the Olympics comes to Los Angeles in 2028 . Uber “expects to have hundreds , if not thousands , of its aircraft in the skies.” Goel told Newsweek . So what wo
23、uld Ubers flying vehicles be like ? They are small , electric aircraft that take off and land vertically （垂直地） , ther give off zero emissions （排放） and are quiet enough to operate in cities . Just like an airplane , the vehicles will have fixed wings to help them glide . But while a helicopter has ju
24、st one big fixed rotor （定量） . Ubers vehicles will have multiple rotors , which will help increase fuel efficiency （效率） while reducing emissions and noise. Because of these fixed wines and multiple rotors . Ubers flying taxis“should be quieter and safer than a helicopter.” reported ABC News . However
25、 , the service still has a long way to go before its ready to accept passengers.For example , to avoid any potential accidents . Uber is working with NASA to study air traffic control problems associated with low-flying aircraft. But just as Dubais Mayor Betty Price said in a news release . “This program is revolutionary and future -oriented （面向未来的）. ”1.Uber s flying taxis are expected to start to take passengers in _.A.2020B.2023C.2028D.20302.How are ber s flying taxis different from helicopters?A.They have one big rotorB.They need more fuel to fly.C.They have fewer fixed wingsD.They should
