课时作业19：Unit 4 Wildlife protection

Unit 4 Wildlife protection
Ⅰ.单句语法填空
1.(2017·江苏高考)He hurried home, never once looking back to see if he ________(follow).
2.Not ________ (employ) by a well­known company doesn't necessarily mean that you have no bright future.
3.His house stands on a hill and can be seen from a ________ (distant) of two miles.
4.Parents spare no effort to pave the way for the ________ (succeed) of their children.
5.The ________ (end) public appearance is an inevitable part of an election campaign.
6.She's the most ________ (power) person in the organization.
7.After the exam, I felt an incredible sense of ________ (relieve).
8.Against the strong wind, we had no choice but to be ________ the mercy of the sea.
9.Greek yogurt ________ (contain) much less fat than double cream.
10.My opinion ________ (affect) by the recent development of the events.
Ⅱ.单句写作
1.We should take action to prevent the fish in the river from ________ (死掉).
2.After everything was done, I breathed ____________ (欣慰地).
3.No one knows for sure when the custom ________________________.
没有人确切地知道这种习俗是什么时候出现的。

4._________________________________________________________________
写作时，要注意你的拼写。

(pay attention to)
5._________________________________________________________________
你应该学好中文，以便可以更好地与当地人交流。

Ⅲ.语法填空
(2019·全国卷Ⅰ)The polar bear is found in the Arctic Circle and some big land masses as far south as Newfoundland. While they are rare north of 88°，there is evidence __1__ they range all the way across the Arctic, and as far south as James Bay in Canada. It is difficult to figure out a global population of polar bears as much of the range has been __2__ (poor) studied; however, biologists calculate that there are about 20,00025,000 polar bears worldwide.
Modern methods __3__ tracking polar bear populations have been employed only since the
mid­1980s, and are expensive __4__ (perform) consistently over a large area. In recent years some Inuit people in Nunavut __5__ (report) increases in bear sightings around human settlements, leading to a __6__ (believe) that populations are increasing. Scientists have responded by __7__ (note) that hungry bears may be congregating (聚集) around human settlements, leading to the illusion (错觉) that populations are __8__ (high) than they actually are. Of __9__ nineteen recognized polar bear subpopulations, three are declining, six __10__ (be) stable, one is increasing, and nine lack enough data.
1.________
2.________
3.________
4.________
5.________
6.________
7.________
8.________
9.________10.________
Ⅳ.短文改错
The old saying “The early bird catches the worm” show us the importance of planning, working hard and trying constant. To achieve outstanding results, the most people must plan ahead and work diligently to overcome all kind of difficulties.
That has been my own experience, either. When I first started high school, I seldom passed my exams, so I never prepared well. Later, my teacher, Mr Black, advised me plan everything in advance. She asked me to study hard as well. After a year of putting his advice onto practice, I can now easily pass all my exams.
There are no short cuts to succeed.
【答案解析】
Ⅰ.单句语法填空
1.【答案】was being followed
【解析】这里if引导的宾语从句用过去进行时表示过去某一时刻(hurried home)正在进行的动作。

又因he与follow之间是被动关系，故用被动语态。

2.【答案】being employed
【解析】此处在陈述一个一般性的事实，且you和employ之间为被动关系，故用动名词的被动式作主语。

3.【答案】distance
【解析】由空格前的a可知，此处应填名词，from a distance “从远处”。

4.【答案】success
【解析】由空格前的the可知此处应用名词success “成功”。

5.【答案】endless
【解析】修饰名词appearance，所以用形容词。

6.【答案】powerful
【解析】修饰名词person，所以用形容词。

7.【答案】relief
【解析】介词of后应跟名词relief “减轻；解除”。

8.【答案】at
【解析】at the mercy of ... “受……摆布”。

9.【答案】contains
【解析】contain “包含”，且描述一般事实，应用一般现在时。

10.【答案】has been affected
【解析】affect “影响”，为动词，与My opinion之间是被动关系，且本句描述过去发生的动作对现在造成的影响，故应用现在完成时的被动语态。

Ⅱ.单句写作
1. dying out
2. in relief
3. came into being
4. When you write a composition, pay attention to your spelling.
5. You should learn Chinese well so that you can communicate well with native speakers.
Ⅲ.语法填空
篇章导读：本文是一篇说明文。

文章介绍了北极熊种群数量越来越少、亟须保护的现状。

1.【答案】that
【解析】考查同位语从句的连接词。

分析句子结构可知，所填词引导同位语从句，解释说明evidence的具体内容，从句中不缺少成分且意义完整，故用that引导。

2.【答案】poorly
【解析】考查词性转换。

修饰动词studied应用形容词poor的副词形式poorly。

3.【答案】of/for
【解析】考查介词。

a method of/for doing sth. “做某事的方法”。

4.【答案】to perform
【解析】考查非谓语动词。

此处是“主语＋be＋adj.＋不定式”结构，不定式用主动形式表示被动含义。

5.【答案】have reported
【解析】考查动词的时态。

根据句中的时间状语“in recent years”可判断用现在完成时。

6.【答案】belief
【解析】考查词性转换。

根据空格前的不定冠词a可知，此处应填believe的名词形式belief。

7.【答案】noting
【解析】考查非谓语动词。

介词后接动词时，应用其动名词形式。

respond by doing sth. “通过做某事回应”。

8.【答案】higher
【解析】考查形容词的比较级。

根据空格后的than可知，此处应用high的比较级形式higher。

9.【答案】the
【解析】考查冠词。

此处特指确认的19个亚种群，故用定冠词the。

10.【答案】are
【解析】考查动词的时态和主谓一致。

此处陈述客观事实，应用一般现在时；six指代six polar bear subpopulations，谓语动词应用复数。

Ⅳ.短文改错
The old saying “The early bird catches the worm” show ①shows
us the importance of planning,
working hard and trying constant ②constantly . To achieve outstanding results, the ＼③
most people must plan
ahead and work diligently to overcome all kind ④kinds
of difficulties.
That has been my own experience, either ⑤too
. When I first started high school, I seldom passed
my exams, so ⑥because I never prepared well. Later, my teacher, Mr Black, advised me ∧⑦to
plan
everything in advance. She ⑧He
asked me to study hard as well. After a year of putting his advice
onto ⑨into
practice, I can now easily pass all my exams.
There are no short cuts to succeed ⑩success
.。