例:你走得越远,不是越到不了楚国吗?
你走得越远,就越到不了楚国。
1. 马跑得越快,离楚国不是越远了吗?
2. 羊已经丢了,还修羊圈干什么?
3. 把杨桃画成了五角星,有什么好笑呢?
4. 我们难道不应该回报父母对我们的爱吗?
5. 那么多星星,你怎么能数得清呢?
6. 这么远,箭哪能射得到呢?
7. 这难道不是天下奇观吗?
8. 这个道理,不是很容易理解吗?
9. 让她去做不正合适吗?
例:这恰好表明有数不尽的骆驼。
这不恰好表明有数不尽的骆驼吗?
1. 地球就是我们共有的家园。
2. 翠鸟漂亮机灵,我们很喜欢它。
3. 认真学习正是好学生的表现。
4. 羊已经丢了,不用修羊圈了。
5. 女娲很难过。
6. 你带的盘缠越多,就越到不了楚国。
山本茂是日本警察科学研究所的一名法医,但他研究植物血型纯属偶然。一天,有个名叫大岛川冈的人驱车经过千叶县城郊时,不慎撞伤了一名儿童。几天之后,警察追踪到他的车。经检查,汽车的前轮上不仅粘有那名儿童的O型血,而且还带有B型、AB型两种血迹。于是,警局指控大岛川冈撞过三个人。但面对证据,大岛川冈只肯承认撞伤过一名儿童,对另两项指控坚决予以否认。另一方面,警方也不能提供确凿证据,法院一时难以裁决。
与此案相隔不久,一名妇女夜间死于床头。法医化验她的血迹为O型,而枕头上的血型却是AB型,于是被疑为他***。除此之外,并无凶手作案的任何证据。这时有人半开玩笑地说:“莫非枕头内的荞麦皮属AB型?”谁知这个谜一般的提示,给了一筹莫展中的山本茂一个极大的启迪。他决定取荞麦皮进行化验,最后发现荞麦皮果真属AB型,这使山本茂如获至宝,欣喜若狂。他立即对发岛川冈的汽车重新取样验证,结果发现车轮上的3种血型中,有两种属于植物。至此,撞人案才水落石出。
从那以后,山本茂一直潜心于植物血型的研究。据他对150种蔬菜、水果以及500种被子植物和裸子植物的种子的化验测定,证实了“植物也有血型”这一结论的普遍性。例如,桃叶等19种植物为A型血型;苹果、草莓、西瓜、海带等77种植物为O型血型;枝状水藻等54种植物为B型血型;李子、桃子等400种植物属于AB型血型。据目前的\'研究可以肯定,植物血型与热泪血型是类同的。科学家还发现,同一种植物还可以有不同的血型,比如枫叶为黄色时,其血型为AB型,但秋天枫叶红了的时候,它的血型又变成了O型。
植物本无血液,何以有血型之分呢?根据现代分子生物学的基础理论可知,人类血型指的是血液中红血球细胞膜表面分子结构的类型。而植物体内相应存在一类带有糖基的蛋白质或多糖链,或称凝集素。有的植物的糖基恰好同人类体内的血型糖基相似;如果以人体抗血清进行鉴定血型的反应,植物体内的糖基也会跟人体抗血清发生反应,从而显示出植物糖基有相似于人的血型。为了弄清血型植物的基本作用,科学家对植物界作了深入研究后得出的结论是:如果植物糖基合成达到一定的长度,在它的尖端就会形成血型物质,然后合成就停止了。血型物质的黏性大,似乎还担负着保护植物体的作用。
科学家指出,植物血型是一门十分深奥的学问,其复杂程度绝不亚于动物血型,而且它很有可能成为人类社会的天然血库。换句话说,科学家研究植物血型的最终目标,就是要让植物为人类提供血源,使自然界繁茂的植物成为浩瀚的天然血库。
16、给下面加点的字注音。
确凿( ) 一筹( )莫展 浩瀚( )
17、指出下列句子使用的说明方法。
(1)据他对150种蔬菜、水果以及500种被子植物和裸子植物的种子的化验测定,证实了“植物也有血型”这一结论的普遍性。
(2)例如:例如,桃叶等19种植物为A型血型;苹果、草莓、西瓜、海带等77种植物为O型血型。
18、植物本无血液,何以有血型之分呢?
19、科学家研究植物血型有什么目标?
20、作者举大岛川冈和妇女的事例有什么作用?
19 答:示例1:图和对联相映成趣。莲“出淤泥”的过程即于右任老人饱经沧桑沉浮的一生,莲最终“出淤泥而不染”,“亭亭净植”的.结果即他一生淡泊,荣辱自安的人生态度,
示例2:莲生于污泥间,却开出鲜艳的花朵,不正像那些身处逆境的人们,笑对人生的苦难?因此,图和对联包含的思想是一致的。
评分说明:由莲的品格联想到乐观的人生态度2分(只点到莲的品格1分;语言通顺、完整1分。
20 (1答:示例:读霍金叩击在投影屏上的文字,我被震撼了。在轮椅上生活了三十余年,还能豁达地说,我还有手指、大脑、理想、亲人和朋友、感恩的心。这种胸怀只有常想一二的人才有。这事例,以情感人,更以理服人。
评分说明,结合动情的句子谈霍金1分;点明事例证明论点的作用1分;语言通顺、完整1分。
(2答:评分说明:事例可以证明论点1分;事例典型1分;语言通顺、概括1分。
21 答:评分说明:结合文章的论点谈,有感受或与之不同的见解1分;谈感受或见解时作一点言之成理的分析1分;语言通顺、完整1分。
1. Nancy is too young to dress herself.
Nancy is not _____ _____ to dress herself.
2. My watch doesn't work well.
There is ____ _____ _______ my watch.
3. Jane doesn't go to work by bus any longer.
Jane ____ _____ _____ to work by bus.
4. It took Mary two weeks to prepare for the exam.
Mary _____two weeks____ ______ for the exam.
5. It seems that they have known each other.
They seem to _____ _____ each other.
6. "My grandpa doesn't like coffee or coke" said Bob
Bob said that _____grandpa liked _____coffee _____coke.
7. Cao Fei joined the League three years ago.
Cao Fei _____ ____ _____ the League for three years.
8. I prefer walking there to going by bus.
I prefer to walk there ____ _____ going by bus.
9. -Thank you very much. -You're welcome.
- ____ a lot. -Not at____ .
10. Kitty does well in English.
Kitty ____ ____ ____ English.
11. They realized Hainan was a beautiful place after they reached there.
They____ realize Hainan was a beautiful place_____ they reached there.
12. We will have to finish the work hardly if you don't help us. We can't finish the work _____ _____ ______
13. My dictionary isn't so thick as yours.
My dictionary is _____ than yours.
14. Could you tell me where the East Street Hospital is? Excuse me, ____ is the _____ to the East Street Hospital?
15. The book is exciting to read.
It is ____ _____ read the book.
16. Jack's mother asked him, "Have you packed your things?" Jack's mother asked him ____ he ____ packed his things.
17. She likes singing better than dancing. She ____ singing ____ dancing.
18. Remember to ring me up as soon as you get to Nanjing Make ____ to give me a ring as soon as you _____ Nanjing.
19. They couldn't catch the train because of the heavy traffic. The heital?
15. The book is exciting to read.
It is ____ _____ read the book.
16. Jack's mother asked him, "Have you packed your things?" Jack's mother asked him ____ he ____ packed his things.
17. She likes singing better than dancing. She ____ singing ____ dancing.
18. Remember to ring me up as soon as you get to Nanjing Make ____ to give me a ring as soon as you _____ Nanjing.
19. They couldn't catch the train because of the heavy traffic. The heavy traffic _____ them from _____ the train.
20. My brother has been away from home for two days.
My brother _____ home two days _____ .
21. Li Lei decided to move to Canada when he was thirty.
Li Lei made a _____ to move to Canada at the _____ of thirty.
22. Jim was too careless to pass the exam last term.
Jim was not_____ _____ to pass the exam last term.
23. If you don't hurry up, you can't catch the train.
Hurry up, _____ you may _____ the train.
24. Yang Li wei said to us, "I'm going to visit your school tomorrow. " We were all pleased.
We were all pleased when we heard Yang Li wei_____ visit_____ school the next day.
25. This is the most interesting film I have ever seen. I have ____seen _____ an interesting film before.
26. I was late for school because of the traffic accident. The traffic accident _____ me _____ getting to school on time.
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