2019学年度北师大版选修七Unit 20 Section Ⅱ Warm­up & Lesson 1 Language Points学案设计(11页word版)
2019学年度北师大版选修七Unit 20  Section Ⅱ  Warm­up & Lesson 1 Language Points学案设计(11页word版)第3页

......将能够在理论上使人类至少活到150岁。 it代替不定式短语作形式宾语。 Cellphones make_it_more_convenient_for_people_to_get_in_touch_with each other.

手机使人们相互取得联系更方便了。

3.By the middle of the century, computers that are millions of times smarter than us will have been developed.

到本世纪中叶,比我们聪明几百万倍的电脑将被研制出来。 倍数表达法:倍数+形容词/副词比较级+than+比较对象。 The dictionary is exactly five_times_more_expensive_than that one.

这本字典的价格恰好是那本的5倍。

         

1.(教材P19)mass

(1)n.质量

①The study finds that physical training is likely to increase the mass of healthy bones.

研究发现体能训练可以提高健康骨骼的质量。

(2)n.团,块,堆;大量

a mass/masses of       众多,大量

the mass of 大多数

②Masses_of/A_mass_of snow and rocks broke away and fell on the climbers.

大量的积雪和岩石突然崩落到登山者的身上。

(3)n.群众,人民大众(用复数)

③Our cause needs the support of the masses.

我们的事业需要人民群众的支持。

[巧学助记]

[名师点津] (1)在"the mass of+名词"作主语的句子中,后面的谓语动词与of后面的名词一致。

(2)在"a mass/masses of+名词"作主语的句子中,谓语动词与mass的形式一致。

(3)a mass/masses of既可以修饰可数名词也可以修饰不可数名词。

④The mass of people in that country are (be) Christians.

那个国家的大部分人是基督教徒。

⑤There were (be) masses of dark clouds in the sky yesterday.

昨天,天空乌云密布。

2.(教材P19)assist vt.帮助;协助

1assist sb. with/in sth.  assist sb. to do sth.  assist sb. in doing sth.  帮助某人(做)某事

(2)assistance n. 帮助

with the assistance of 在......帮助下

(3)assistant adj. 辅助的