People have different views on this question.
People’s ideas vary / differ on this issue.
Generation gap is a problem that we are confronted with.
Generation gap is now a problem we have to face.
The environmental problem is a serious problem in modern society.
And, but, or
not only…but also…,
① 主语 + 谓语 + by either doing A or doing B 通过A方法或者B方法，….可以得到…
② 主语 + 谓语 + by not only doing A, but more importantly / seriously, doing B
③ 主语 + 谓语 + not only in terms of A, but more importantly / seriously, in terms of B 不止在A方面，更重要/严重的是，在B方面
Most children are spoilt, not only in terms of care and attention, but more seriously, material ways.
Students’ behaviors can be improved by either encouraging students to wear well-designed uniforms or guiding them to participate in activities which reveal the spirit of team work.
Obesity can be relieved by not only forming good dietary / eating habits, but more importantly taking more exercises, such as jogging and rope skipping.
认为: insist, maintain, hold, suggest, argue, believe
支持: favor, propose, support, agree, advocate, be for, be in favor of
反对: object, oppose, be against
Some people do believe that...
Some people are fully convinced that...
Some people assert that...
Some people deem that...
Some people argue that...
Some people claim that...
Some people doubt that...
Some people deny that...
(1).It is suggested in the graph that…+ 句子
It is reported that / estimated that / proved that...
It is well-known / generally accepted / universally acknowledged that...
(2).Whether S+V is a controversial issue.
Whether we should make effort to / endeavor to preserve endangered species is …
Whether we should do…depends on whether S+V
Whether we will succeed depends on whether we persist.
(3). What we should do is to do….
We should protect animals.
改写: What we should pay attention to / emphasize / stress is to do...
What teachers should emphasize is to tell students to practice more.
3. 主语从句+表语从句: What we are faced with is that …
What we are faced with is the depletion of natural resources
4. 表语从句：is that + 完整句子 ( that不能省略 )
My first reason is that academic courses withstand the test of time and represent the essence of ancient cultures.
One advantage of the application of computers in education is that they can enrich the traditional teaching methods to a great extent.
常用：the fact / idea / belief / proposal / effort that + 句子 that 不能省
Be based on the belief that...
From the above discussion, we can safely draw the conclusion that…
There is no evidence that…
The government should not be blind to the fact that imprisonment of criminals is the comfort to the victims at the very least.
University students should bear total expenses for their tuition on the generalization that university students usually earn much more than people without a degree.
6.定语从句：名词(短定语)人, who, 物, which, that…
(1) Those (who + 从句谓语) + 主句谓语
Those who favor this view give the following reasons.
Those who are addicted to the Internet tend to be isolated, unsociable or even depressed.
(2) 主 + 谓, which (主) + 谓 (非限制定语从句, 前面的逗号不能省略)
Parents can focus on their careers, which will bring better life conditions for their children.
The government should encourage people to take public transport, which will relieve the pressure on traffic to a great extent.
(3) 介词 + 引导词：主句 + 逗号 + some of which, two of which, few of whom
The Internet brings many tangible benefits, two of which (物) deserve most attention。
Many steps have been taken to relieve the pressure on traffic, pitifully some of which are ineffective.
Many people are immersed in(exposed to) advertisements every day, few of whom think of its impacts.
时间: when, after, before, until, once, whenever
原因: because + 句子, as, since, for the simple reason that + 句子
because of / due to / owing to / thanks to
原因, so+ 结果
..., thus + being 结果
As a result，结果
Some children tend to be so addicted to the Internet that they may ignore their academic study.
(6) 条件状语：If 主谓 + 主句
原则：主将从现 If it rains tomorrow, we will not go to school. (if后面是从句)
As long as…
On condition that…
Provided that… that不能省
Under the circumstances that…
The government can explore the space provided that its budget is not tight.
Students can take part-time jobs provided that they can balance work and study and plan their time properly.
(7) 让步状语 (虽然...)
Though, although, 不能和 but 连用
No matter + what, where, when, how….
No matter where you go, I will stay with you.
Despite the fact that…
Despite the fact that the view seems reasonable, it does not hold water.
Though the view seems reasonable, it does not hold water.