关于形容词副词几组难点句型详解 在具体的语境中辨析形容词与副词的语义，是对形容词、副词考查的第一大热点。解答此类题关键是要分析具体的语境，结合基本词义、搭配等来选择正确的答案。本节对几组重要的形容词副词、短语、句型的辨析讲解，帮助大家梳理形容词副词中的难点。 句型1：A  is 倍数＋the size/length/weight/height…of B．如： The newly broadened square is four times the size of the previous one. 新扩建的广场是前一个的四倍大。 句型2：A is to B what C is to D. 意为“A对于B就如C对于D。”如： Engines are to machines what hearts are to animals. 发动机对于机器就如心脏对于动物。 句型3：can't be too＋adj. ＝ can't be＋adj.＋enough无论……都不为过，越……越…… 如： You can never be careful enough.＝ You can never be too careful.你无论怎么小心都不为过。 句型4：too…to句型的两个意义 (1) 表示否定意义，意为“太……而不能”。如： This question is too hard for me to understand. 这个问题对我来说太难理解了。 新概念英语视频 高中英语词汇3500 高一英语单词 (2) 表示肯定意义，意为“非常，很，极”。当too后面接easy，ready, eager, inclined, willing, thankful, delighted等形容词时，too表示“很，非常”之意，与very表达“很”的意思相同。当too前有all, but, only等词时，形成only /but/all too…to do结构，仍旧表达“非常，很，极”之意。如： I’m too glad to hear that. 我对此感到非常高兴。 Nowadays some students in middle school date with their classmates．According to a new study from the University of Georgia, those students have much worse study skills and are four times more likely to stop schooling．They use twice as much alcohol and tobacco than their single classmates． "Romantic relationships are a trademark of adolescence, but very few studies have examined how adolescents differ in the development of these relationships," said Pamela Orpinas, study author and professor in the College of Public Health and Head of the department of Health Promotion and Behaviour． Orpinas followed a group of 624 students over a seven-year period from 6th to 12th grades． Each year, the group of students completed a survey indicating whether they had dated and reported the frequency of different behaviours, including the use of drugs and alcohol．Their teachers completed questionnaires about the students7 academic efforts． He found some students never or hardly ever reported dating from middle to high school, and these students had consistently the best study skills according to their teachers．Other students dated infrequently in middle school but increased the frequency of dating in high school． "At all points in time, teachers rated the students who reported the lowest frequency of dating as having the best study skills and students with highest dating as having the worst study skills," according to the journal article．Study skills refer to behaviours that lead to academic success such as doing homework for extra credit, being well organized, finishing homework, working hard and reading assigned chapters． "Dating a classmate may have the same emotional complications （并发症） of dating a co-worker," Or pinas said．"When the couple break up, they have to continue to see each other in class and perhaps witness the ex-partner （前伴侣） dating someone else．It is reasonable to think this could be linked to depression and distract （分散注意力） them from studying．" "Dating should not be considered a ceremony of growth in middle school," Orpinas concluded． 47．We can learn from the passage that students who date in middle school may _____． A．be less likely to use alcohol and tobacco B．enjoy better school lives C．be more likely to hurt others D．have poorer academic performances、 48．Study skills may include the following behaviors and qualities except _____． A．being kind and helpful B．being well organized C．being diligent D．finishing assigned schoolwork 49．According to the passage, Orpinas holds a（n） _____ attitude towards dating in middle school． A．indifferent B．negative C．positive D．supportive