备战2021高考英语阅读之语法填空（六）
考点归纳：
分类：
实词：动词；名词；形容词；副词——括号中会给提示词
虚词：介词；连词；冠词；代词——括号中不会给提示词
词性修饰：
形容词：名词；代词
副词：动词；形容词；副词
名词考点：单复数；变形容词；变动词；所有格
备战高考1）some；several；different；many；more；lots of.. ；one of+（形容词最高级）+名词复数
2）冠词+（形容词）+名词  a red apple
3）代词+（形容词）+名词  his cute pet
4）数词+（形容词）+名词  two red apples
5）名词：age（shortage；marriage）；ness（sadness）；ance/ence/ancy/ency(expectancy;tendency)
dom(freedom);er/or/ee/ress/ian/ist(employee/musician);tion;ment+al=adj;ity(responsibility)
ship; ure(pressure)
动词考点：时态；语态；非谓语（to do；done；doing）；变形容词；名词
1）Be    （v）思考方向：done；doing；adj（v/n）；to do为了；将要去（what we should do is to do）
2）be+ done   to do   （v）    sb be asked to do
3）be + adj   to do （90%） /doing （10%） （v）be likely to do / busy/useless/no use/worth
4）be+ adj/ed    （v）+介词    be interested in
形容词/副词：原级；比较级；最高级；副词
1）as+原级+as
2）much/even/what’s/than/little/rather/far+比较级
3）多少好坏远
Many/much-more-most      little-less-least
Well/good-better-best    bad/ill-worse-worst
Far-farther/further（空间）-farthest/furthest
4) one of+（形容词最高级）+名词复数         of all
5)变副词： 形容词+ly=副词    
副词：
1） adv    （adj），
2）v adv    （adj）   adv    （adj） + v
3）adj adv    （adj）
4） adv    （adj）+句子
介词： when/while+ doing/ed
1）介词+doing（in/on/at/of/for/from/with/without/by/about/after/upon）
2）固定搭配：as a result of
3） （be） ed  + by+ doing /反身代词/交通工具
冠词（a/an/the）
定（the）：一独；二双；三方；四级；五乐；六姓；七形；八山；九党；十序
不定：（a/an）
a+辅音音素  a boy  an honest boy    an hour
an+元音音素 an apple  a useful book  a unique book 
零冠词：泛指复数日三餐；球类运动季节前；星期月份节假日；抽象国名或语种
连词（and ；but；so；or）
代词：主格；宾格；物主代词；反身代词
主格
宾格
形容词物代
名词物代
反身代词
第一人称
单数
I
Me
My
Mine
Myself
复数
We
Us
Our
Ours
Ourselves
第二人称
单数
You
You
Your
Yours
Yourself
复数
You
You
Your
Yours
Yourselves
第三人称
单数
He
Him
His
His
Himself
单数
She
Her
Her
Hers
Herself
单数
It
It
Its
Its
Itself
复数
They
Them
Their
Theirs
Themselves
从句：
定语从句(放在名词之后的从句)
引导词：关系代词：which/that/who/whom/as    从句中缺少主语或宾语
      关系副词：where；when；why；how     从句中缺少状语
that和which的选择问题
适用于that情况 11种
适用于which情况 2种（非限定性定从；介词之后）
（A）
There is a saying that goes, “All roads lead to Rome.” Roads were essential for the 1.________(grow) of the Roman Empire. These roads enabled the Romans to move armies 2.________(efficient). At its peak, the Roman road system 3.________(cover) 53,0
00 miles and contained about 22 links. The Romans were good at constructing these roads, 4.________ were called viae(路)．
Prepared viae began in history as the streets of Rome. The Law of the Twelve Tables(十二铜表法), 5.________(date) back to approximately 410 B．C., explains that a road shall be 8 feet wide where straight and 16 feet where curved. According to the Tables, Romans are commanded 6.________(build) roads that would not need frequent repair.
The Romans had 7.________ preference for standardization whenever they could. A golden milestone was set up. 8.________ this milestone were listed all of the cities in the empire and the distances to them.
Roman roads 9.________(consider) very important in maintaining both the stability and the expansion of the empire at that time. Even after over 1,000 years, these roads are still used. During the fall of the Roman Empire, the same roads offered 10.________(avenue) of invasion to the foreigners. This contributed to the Roman military ruin.
（B）
Chinese researchers have 1.________ (successful) grown and harvested rice in the deserts of Dubai after developing a strain (品种) which 2.________(allow) the crop to grow in salt water.
A team of scientists, 3.________ (lead) by China's “Father of Hybrid Rice”， Yuan Longping, have already started growing the crop in dilute(稀释的) seawater at home and are now bringing the technique to the Middle East.
The big harvest of rice last year in the suburbs of Dubai far exceeded scientists' expectations, according to a report by Xinhua News Agency. The high output－7,100 kilograms per hectare compared with the 4.________(globe) average of 3,000 kilograms per hectare－has encouraged scientists to expand the project. They 5.________(plan) to set up a 100hectare experimental farm in Dubai later last year. They will put it into regular use this year and then start expanding after 2020.
The Dubai project is cooperation between China's Sea Rice Research and Development Center with the Private Office of Sheikh Saeed Bin Ahmed Al Maktoum. The two parties ha
ve signed an 6.________(agree) to promote seawater rice across the area to reduce  the risk of food shortages in the future.
While scientists in some countries 7.________ water shortages are a serious concern have been developing desalination(脱盐) techniques to change seawater for use in agriculture, China has been working 8.________(develop) strains of salttolerant rice for the past four decades.