Agriculture has come a long way from its ancient beginnings.Long ago,farmers would work hard on their individual plots of land,using simple tools or even their bare hands.They tended to their crops for many hours each day so that the crops grew well.(1)AA For example,a single storm could destroy a whole year's work,while a summer of good weather could ensure a good harvest.
Modern science and technology have helped to greatly reduce the back-breaking labour involved in farming,along with the reliance on luck and guesswork(2)GG
Probably one of the most beneficial innovations is drip irrigation,which has made it possible to develop big,green farms in the middle of the desert.Simcha Blass,an Israeli scientist,discovered this new way of irrigation in the 1930s.Through this discovery,farmers can now produce crops on dry land without needing much water. (3)EE The limited and focused use of just the right amount of water also denies moisture (水分) to weeds,keeping them from harming the crops.
(4)CC However,what if an area has plenty of water,but little usable soil?As it turns out,it is possible to grow plants without using soil at all.With hydroponics(水培),plant roots are supported by rocks or a fiber mat.Nutrient-rich water is then provided so that the plants can grow.Recent research has centered on vertical hydroponics farming.With a vertical farm,the crops are planted in containers that are piled into plant skyscrapers.(5)FF
With such technological advances,the image of a farmer pushing a plough will eventually become a thing of the past.
A.Luck played a great part in farming.
B.Some areas would be too dry to grow crops.
C.Drip irrigation deals with a lack of water in an area.
D.There have been experiments to make drip irrigation a reality.
E.This irrigation method uses far less water than other methods.
F.Furthermore,nearly all hydroponic farms partially or fully automated.
G.Farmers have benefited greatly from innovations in crop production.
【考點】人與自我.
【答案】A;G;E;C;F
【解答】
【點評】
聲明:本試題解析著作權(quán)屬菁優(yōu)網(wǎng)所有,未經(jīng)書面同意,不得復制發(fā)布。
發(fā)布:2024/5/27 14:0:0組卷:31引用:3難度:0.5
相似題
-
1.Walk Out of the Comfort Zone and Try New Things For most high school students,free periods (課、節(jié)) are useless.From what I have seen,few do homework. (1)
(2)
In my 8th grade,I was told that I had to take an art class as a graduation requirement;so in the 9th grade I took Studio and Art.One of the projects was to build a clay pot,but I built mine incorrectly,so it broke in the kiln (窯). (3)
(4)
Half of all college students change their major at some point.By doing that hundreds of dollars are wasted on classes that they would have never needed to take.So use our extra periods to find out what we want to do in college. (5)
A.Our school offers many classes
B.We should find out what we are good at
C.I've avoided anything related to art since then
D.Instead,many are on their phones and talking
E.I found out that I have no artistic ability at all
F.Walk out of our comfort zone and try new things
G.The classes we choose can influence us in the future發(fā)布:2025/1/1 18:0:1組卷:7引用:5難度:0.5 -
2.Most smart phones allow you to run location-sharing software that uses the phone's GPS capability to let friends and family know your exact location.There are lots of great uses for this technology.(1)
Choose what's best for you.Some location-sharing services are games that let you give a shout-out when you've turned up at a particular spot.(2)
Know who your friends are.(3)
(4)
Update parents.Location-based services are a great way for teens to let parents know where they are without having to call or text.(5)A.Check back often.
B.Keep sending your location.
C.However,these services are not for all children.
D.With its help,you can easily share your location with them.
E.Check-ins ease worries so they don't have to follow your every move.
F.Others show where you are all the time or for a period of time you set.
G.Some location services operate like Facebook,where you invite and accept friends.發(fā)布:2025/1/1 18:0:1組卷:7引用:4難度:0.7 -
3."Me".It's a small word with big meaning,and that meaning is as individual to each of us as the way we look.Through interviews,Dr Hart,a psychologist,was able to discover what "me" means to other people,and how they have learnt to(1 )
Jade has become(2)
In Anthony's case,things are different.He never cared about his (6)
When it comes to Emma,she is (9)發(fā)布:2025/1/1 18:0:1組卷:8引用:2難度:0.5
把好題分享給你的好友吧~~